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项目初始化

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初始化
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... ...
# koa2-Sequelize—project
## 基于nodejs的后台架构设计
web框架koa.js orm框架Sequelizejs 数据库mysql
<img src="https://dl.dropboxusercontent.com/u/6396913/koa/logo.png" alt="koa middleware framework for nodejs" width="255px" />
## Installation
Koa requires __node v7.6.0__ or higher for ES2015 and async function support.
```
$ npm install koa -g
```
```
$ npm i
```
```
$ npm start
```
```
访问 http://localhost:3000/
```
# 项目的目录与文件结构
├── bin //node的启动文件
├── controllers //控制器
├── model //数据库模型映射
├── public //静态文件
├── routes //路由文件
├── services //业务层
├── docs //api markdown 编写api
├── util //针对本项目工具类
├── package.json //nodejs的包管理和分发工具
├── view //存放视图文件
├── README.md //项目说明
└── config //数据库配置
\ No newline at end of file
... ...
const Koa = require('koa')
const app = new Koa()
const views = require('koa-views')
const json = require('koa-json')
const onerror = require('koa-onerror')
const bodyparser = require('koa-bodyparser')
const logger = require('koa-logger')
const cors = require('koa-cors');
const index = require('./routes/index')
const users = require('./routes/users')
const filterUrl = require(__dirname+'/util/filterUrl')
const _ = require('lodash');
// error handler
onerror(app)
// middlewares
app.use(cors());
app.use(bodyparser({
enableTypes:['json', 'form', 'text']
}))
app.use(json())
app.use(logger())
app.use(require('koa-static')(__dirname + '/public'))
app.use(views(__dirname + '/views', {
extension: 'pug'
}))
// logger
app.use(async (ctx, next) => {
const start = new Date();
if(filterUrl.indexOf(ctx.request.url) != -1){
await next();
}else if(!ctx.header.token){
ctx.response.status = 400;
ctx.response.body = {msg:'请登录'}
}else{
await next();
}
const ms = new Date() - start
console.log(`${ctx.method} ${ctx.url} - ${ms}ms`)
})
// routes
app.use(index.routes(), index.allowedMethods())
app.use(users.routes(), users.allowedMethods())
module.exports = app
... ...
#!/usr/bin/env node
/**
* Module dependencies.
*/
var app = require('../app');
var debug = require('debug')('demo:server');
var http = require('http');
/**
* Get port from environment and store in Express.
*/
var port = normalizePort(process.env.PORT || '3000');
// app.set('port', port);
/**
* Create HTTP server.
*/
var server = http.createServer(app.callback());
/**
* Listen on provided port, on all network interfaces.
*/
server.listen(port);
server.on('error', onError);
server.on('listening', onListening);
/**
* Normalize a port into a number, string, or false.
*/
function normalizePort(val) {
var port = parseInt(val, 10);
if (isNaN(port)) {
// named pipe
return val;
}
if (port >= 0) {
// port number
return port;
}
return false;
}
/**
* Event listener for HTTP server "error" event.
*/
function onError(error) {
if (error.syscall !== 'listen') {
throw error;
}
var bind = typeof port === 'string'
? 'Pipe ' + port
: 'Port ' + port;
// handle specific listen errors with friendly messages
switch (error.code) {
case 'EACCES':
console.error(bind + ' requires elevated privileges');
process.exit(1);
break;
case 'EADDRINUSE':
console.error(bind + ' is already in use');
process.exit(1);
break;
default:
throw error;
}
}
/**
* Event listener for HTTP server "listening" event.
*/
function onListening() {
var addr = server.address();
var bind = typeof addr === 'string'
? 'pipe ' + addr
: 'port ' + addr.port;
debug('Listening on ' + bind);
}
... ...
var Sequelize = require('sequelize');
//数据配置
var sequelize = new Sequelize('guest', 'root', "", {
host:'localhost',
dialect: 'mysql',
pool: {
max: 5,
min: 0,
idle: 30000
}
})
module.exports = sequelize
\ No newline at end of file
... ...
var userModel = require('../model/userModel');
var saitMd5 = require('../util/saltMD5')
var status = require('../util/resTemplate')
const userService = require('../services/userService')
const uuid = require('../util/UuidUtil')
var userController =function (){
};
var sleep = function (time) {
return new Promise(function (resolve, reject) {
setTimeout(function () {
console.log(2)
resolve();
}, time);
})
};
userController.prototype.addUser = async(ctx, next) =>{
var user = {
id:uuid.db36(),
name:'555555',
age:11,
telephone:11112112,
password:saitMd5.md5AddSalt('123455').md5Pass
}
return await userService.addUser(user)
}
module.exports = new userController();
\ No newline at end of file
... ...
var sequelize = require('../config');
var Sequelize = require('sequelize');
var user = sequelize.define('user', {
id: {
type: Sequelize.STRING(36),
primaryKey: true
},
name: Sequelize.STRING(100),
age: Sequelize.BIGINT(11),
telephone: Sequelize.BIGINT(11),
password:Sequelize.STRING(36)
}, {
timestamps: false,
freezeTableName: true
});
module.exports = user;
\ No newline at end of file
... ...
../acorn/bin/acorn
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../clean-css/bin/cleancss
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... ...
../latest-version/cli.js
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... ...
../mkdirp/bin/cmd.js
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... ...
../nodemon/bin/nodemon.js
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... ...
../nopt/bin/nopt.js
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... ...
../rc/index.js
\ No newline at end of file
... ...
../repeating/cli.js
\ No newline at end of file
... ...
../semver/bin/semver
\ No newline at end of file
... ...
../swig/bin/swig.js
\ No newline at end of file
... ...
../touch/bin/touch.js
\ No newline at end of file
... ...
../uglify-js/bin/uglifyjs
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... ...
All packages installed at Fri Aug 18 2017 18:17:06 GMT+0800 (CST)
\ No newline at end of file
... ...
{
"mysql": [
"2.14.1"
],
"crypto": [
"1.0.1"
],
"objectid": [
"3.2.1"
],
"jsonwebtoken": [
"7.4.3"
],
"jws": [
"3.1.4"
],
"lodash.once": [
"4.1.1"
],
"ms": [
"2.0.0"
],
"xtend": [
"4.0.1"
],
"joi": [
"6.10.1"
],
"isemail": [
"1.2.0"
],
"moment": [
"2.18.1"
],
"topo": [
"1.1.0"
],
"hoek": [
"2.16.3"
]
}
\ No newline at end of file
... ...
Recently updated (since 2017-08-11)
2017-08-16
→ mysql2@* (06:48:48)
→ mysql2@1.4.1 › denque@^1.1.1 (05:03:36)
... ...
MIT License
Copyright (c) Microsoft Corporation. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
... ...
# Installation
> `npm install --save @types/geojson`
# Summary
This package contains type definitions for GeoJSON Format Specification Revision (http://geojson.org/).
# Details
Files were exported from https://www.github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/geojson
Additional Details
* Last updated: Mon, 17 Apr 2017 17:55:17 GMT
* Dependencies: none
* Global values: GeoJSON
# Credits
These definitions were written by Jacob Bruun <https://github.com/cobster/>.
... ...
// Type definitions for GeoJSON Format Specification Revision 1.0
// Project: http://geojson.org/
// Definitions by: Jacob Bruun <https://github.com/cobster/>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
export as namespace GeoJSON;
/***
* http://geojson.org/geojson-spec.html#geojson-objects
*/
export interface GeoJsonObject {
type: string;
bbox?: number[];
crs?: CoordinateReferenceSystem;
}
/***
* http://geojson.org/geojson-spec.html#positions
*/
export type Position = number[];
/***
* http://geojson.org/geojson-spec.html#geometry-objects
*/
export interface DirectGeometryObject extends GeoJsonObject {
coordinates: Position[][][] | Position[][] | Position[] | Position;
}
/**
* GeometryObject supports geometry collection as well
*/
export type GeometryObject = DirectGeometryObject | GeometryCollection;
/***
* http://geojson.org/geojson-spec.html#point
*/
export interface Point extends DirectGeometryObject {
type: 'Point';
coordinates: Position;
}
/***
* http://geojson.org/geojson-spec.html#multipoint
*/
export interface MultiPoint extends DirectGeometryObject {
type: 'MultiPoint';
coordinates: Position[];
}
/***
* http://geojson.org/geojson-spec.html#linestring
*/
export interface LineString extends DirectGeometryObject {
type: 'LineString';
coordinates: Position[];
}
/***
* http://geojson.org/geojson-spec.html#multilinestring
*/
export interface MultiLineString extends DirectGeometryObject {
type: 'MultiLineString';
coordinates: Position[][];
}
/***
* http://geojson.org/geojson-spec.html#polygon
*/
export interface Polygon extends DirectGeometryObject {
type: 'Polygon';
coordinates: Position[][];
}
/***
* http://geojson.org/geojson-spec.html#multipolygon
*/
export interface MultiPolygon extends DirectGeometryObject {
type: 'MultiPolygon';
coordinates: Position[][][];
}
/***
* http://geojson.org/geojson-spec.html#geometry-collection
*/
export interface GeometryCollection extends GeoJsonObject {
type: 'GeometryCollection';
geometries: GeometryObject[];
}
/***
* http://geojson.org/geojson-spec.html#feature-objects
*/
export interface Feature<T extends GeometryObject> extends GeoJsonObject {
type: 'Feature';
geometry: T;
properties: {} | null;
id?: string;
}
/***
* http://geojson.org/geojson-spec.html#feature-collection-objects
*/
export interface FeatureCollection<T extends GeometryObject> extends GeoJsonObject {
type: 'FeatureCollection';
features: Array<Feature<T>>;
}
/***
* http://geojson.org/geojson-spec.html#coordinate-reference-system-objects
*/
export interface CoordinateReferenceSystem {
type: string;
properties: any;
}
export interface NamedCoordinateReferenceSystem extends CoordinateReferenceSystem {
properties: { name: string };
}
export interface LinkedCoordinateReferenceSystem extends CoordinateReferenceSystem {
properties: { href: string; type: string };
}
... ...
{
"_args": [
[
{
"raw": "@types/geojson@^1.0.0",
"scope": "@types",
"escapedName": "@types%2fgeojson",
"name": "@types/geojson",
"rawSpec": "^1.0.0",
"spec": ">=1.0.0 <2.0.0",
"type": "range"
},
"/Users/fzy/project/3mang/node_modules/_terraformer-wkt-parser@1.1.2@terraformer-wkt-parser/node_modules/terraformer"
]
],
"_from": "@types/geojson@>=1.0.0 <2.0.0",
"_id": "@types/geojson@1.0.2",
"_inCache": true,
"_location": "/@types/geojson",
"_npmOperationalInternal": {
"host": "packages-12-west.internal.npmjs.com",
"tmp": "tmp/geojson-1.0.2.tgz_1492451765652_0.5249417354352772"
},
"_npmUser": {
"name": "types",
"email": "ts-npm-types@microsoft.com"
},
"_phantomChildren": {},
"_requested": {
"raw": "@types/geojson@^1.0.0",
"scope": "@types",
"escapedName": "@types%2fgeojson",
"name": "@types/geojson",
"rawSpec": "^1.0.0",
"spec": ">=1.0.0 <2.0.0",
"type": "range"
},
"_requiredBy": [
"/terraformer",
"/terraformer",
"/terraformer-wkt-parser/terraformer"
],
"_resolved": "https://registry.npmjs.org/@types/geojson/-/geojson-1.0.2.tgz",
"_shasum": "b02d10ab028e2928ac592a051aaa4981a1941d03",
"_shrinkwrap": null,
"_spec": "@types/geojson@^1.0.0",
"_where": "/Users/fzy/project/3mang/node_modules/_terraformer-wkt-parser@1.1.2@terraformer-wkt-parser/node_modules/terraformer",
"contributors": [
{
"name": "Jacob Bruun",
"url": "https://github.com/cobster/"
}
],
"dependencies": {},
"description": "TypeScript definitions for GeoJSON Format Specification Revision",
"devDependencies": {},
"directories": {},
"dist": {
"shasum": "b02d10ab028e2928ac592a051aaa4981a1941d03",
"tarball": "https://registry.npmjs.org/@types/geojson/-/geojson-1.0.2.tgz"
},
"license": "MIT",
"main": "",
"maintainers": [
{
"name": "types",
"email": "ts-npm-types@microsoft.com"
}
],
"name": "@types/geojson",
"optionalDependencies": {},
"peerDependencies": {},
"readme": "# Installation\r\n> `npm install --save @types/geojson`\r\n\r\n# Summary\r\nThis package contains type definitions for GeoJSON Format Specification Revision (http://geojson.org/).\r\n\r\n# Details\r\nFiles were exported from https://www.github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/geojson\r\n\r\nAdditional Details\r\n * Last updated: Mon, 17 Apr 2017 17:55:17 GMT\r\n * Dependencies: none\r\n * Global values: GeoJSON\r\n\r\n# Credits\r\nThese definitions were written by Jacob Bruun <https://github.com/cobster/>.\r\n",
"readmeFilename": "README.md",
"repository": {
"type": "git",
"url": "https://www.github.com/DefinitelyTyped/DefinitelyTyped.git"
},
"scripts": {},
"typeScriptVersion": "2.0",
"typesPublisherContentHash": "8af0f83b55578253a8217e74c8a6b4d11cf8aad1b82772cf45162e9ebc4eb776",
"version": "1.0.2"
}
... ...
../_@types_node@6.0.87@@types/node
\ No newline at end of file
... ...
Thu Aug 17 2017 17:03:40 GMT+0800 (CST)
\ No newline at end of file
... ...
MIT License
Copyright (c) Microsoft Corporation. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
... ...
# Installation
> `npm install --save @types/geojson`
# Summary
This package contains type definitions for GeoJSON Format Specification Revision (http://geojson.org/).
# Details
Files were exported from https://www.github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/geojson
Additional Details
* Last updated: Mon, 17 Apr 2017 17:55:17 GMT
* Dependencies: none
* Global values: GeoJSON
# Credits
These definitions were written by Jacob Bruun <https://github.com/cobster/>.
... ...
// Type definitions for GeoJSON Format Specification Revision 1.0
// Project: http://geojson.org/
// Definitions by: Jacob Bruun <https://github.com/cobster/>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
export as namespace GeoJSON;
/***
* http://geojson.org/geojson-spec.html#geojson-objects
*/
export interface GeoJsonObject {
type: string;
bbox?: number[];
crs?: CoordinateReferenceSystem;
}
/***
* http://geojson.org/geojson-spec.html#positions
*/
export type Position = number[];
/***
* http://geojson.org/geojson-spec.html#geometry-objects
*/
export interface DirectGeometryObject extends GeoJsonObject {
coordinates: Position[][][] | Position[][] | Position[] | Position;
}
/**
* GeometryObject supports geometry collection as well
*/
export type GeometryObject = DirectGeometryObject | GeometryCollection;
/***
* http://geojson.org/geojson-spec.html#point
*/
export interface Point extends DirectGeometryObject {
type: 'Point';
coordinates: Position;
}
/***
* http://geojson.org/geojson-spec.html#multipoint
*/
export interface MultiPoint extends DirectGeometryObject {
type: 'MultiPoint';
coordinates: Position[];
}
/***
* http://geojson.org/geojson-spec.html#linestring
*/
export interface LineString extends DirectGeometryObject {
type: 'LineString';
coordinates: Position[];
}
/***
* http://geojson.org/geojson-spec.html#multilinestring
*/
export interface MultiLineString extends DirectGeometryObject {
type: 'MultiLineString';
coordinates: Position[][];
}
/***
* http://geojson.org/geojson-spec.html#polygon
*/
export interface Polygon extends DirectGeometryObject {
type: 'Polygon';
coordinates: Position[][];
}
/***
* http://geojson.org/geojson-spec.html#multipolygon
*/
export interface MultiPolygon extends DirectGeometryObject {
type: 'MultiPolygon';
coordinates: Position[][][];
}
/***
* http://geojson.org/geojson-spec.html#geometry-collection
*/
export interface GeometryCollection extends GeoJsonObject {
type: 'GeometryCollection';
geometries: GeometryObject[];
}
/***
* http://geojson.org/geojson-spec.html#feature-objects
*/
export interface Feature<T extends GeometryObject> extends GeoJsonObject {
type: 'Feature';
geometry: T;
properties: {} | null;
id?: string;
}
/***
* http://geojson.org/geojson-spec.html#feature-collection-objects
*/
export interface FeatureCollection<T extends GeometryObject> extends GeoJsonObject {
type: 'FeatureCollection';
features: Array<Feature<T>>;
}
/***
* http://geojson.org/geojson-spec.html#coordinate-reference-system-objects
*/
export interface CoordinateReferenceSystem {
type: string;
properties: any;
}
export interface NamedCoordinateReferenceSystem extends CoordinateReferenceSystem {
properties: { name: string };
}
export interface LinkedCoordinateReferenceSystem extends CoordinateReferenceSystem {
properties: { href: string; type: string };
}
... ...
{
"name": "@types/geojson",
"version": "1.0.2",
"description": "TypeScript definitions for GeoJSON Format Specification Revision",
"license": "MIT",
"contributors": [
{
"name": "Jacob Bruun",
"url": "https://github.com/cobster/"
}
],
"main": "",
"repository": {
"type": "git",
"url": "https://www.github.com/DefinitelyTyped/DefinitelyTyped.git"
},
"scripts": {},
"dependencies": {},
"peerDependencies": {},
"typesPublisherContentHash": "8af0f83b55578253a8217e74c8a6b4d11cf8aad1b82772cf45162e9ebc4eb776",
"typeScriptVersion": "2.0",
"_from": "@types/geojson@1.0.2",
"_resolved": "http://registry.npm.taobao.org/@types/geojson/download/@types/geojson-1.0.2.tgz"
}
\ No newline at end of file
... ...
Thu Aug 17 2017 17:03:40 GMT+0800 (CST)
\ No newline at end of file
... ...
MIT License
Copyright (c) Microsoft Corporation. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE
... ...
# Installation
> `npm install --save @types/node`
# Summary
This package contains type definitions for Node.js (http://nodejs.org/).
# Details
Files were exported from https://www.github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node/v6
Additional Details
* Last updated: Wed, 16 Aug 2017 22:06:59 GMT
* Dependencies: events, net, stream, child_process, tls, http, readline, crypto
* Global values: Buffer, NodeJS, SlowBuffer, ___dirname, ___filename, clearImmediate, clearInterval, clearTimeout, console, exports, global, module, process, require, setImmediate, setInterval, setTimeout
# Credits
These definitions were written by Microsoft TypeScript <http://typescriptlang.org>, DefinitelyTyped <https://github.com/DefinitelyTyped/DefinitelyTyped>, Wilco Bakker <https://github.com/WilcoBakker>.
... ...
{
"name": "@types/node",
"version": "6.0.87",
"description": "TypeScript definitions for Node.js",
"license": "MIT",
"contributors": [
{
"name": "Microsoft TypeScript",
"url": "http://typescriptlang.org"
},
{
"name": "DefinitelyTyped",
"url": "https://github.com/DefinitelyTyped/DefinitelyTyped"
},
{
"name": "Wilco Bakker",
"url": "https://github.com/WilcoBakker"
}
],
"main": "",
"repository": {
"type": "git",
"url": "https://www.github.com/DefinitelyTyped/DefinitelyTyped.git"
},
"scripts": {},
"dependencies": {},
"typesPublisherContentHash": "2bb27a652843cdb5a2bc4fa7c403d6d27c3e2b8608304783c3086402d6fcac83",
"typeScriptVersion": "2.0",
"_from": "@types/node@6.0.87",
"_resolved": "http://registry.npm.taobao.org/@types/node/download/@types/node-6.0.87.tgz"
}
\ No newline at end of file
... ...
lib-cov
*.seed
*.log
*.csv
*.dat
*.out
*.pid
*.gz
pids
logs
results
npm-debug.log
node_modules
... ...
Thu Aug 17 2017 17:34:27 GMT+0800 (CST)
\ No newline at end of file
... ...
language: node_js
node_js:
- 0.6
- 0.8
... ...
Copyright 2013 Thorsten Lorenz.
All rights reserved.
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
... ...
# ansicolors [![build status](https://secure.travis-ci.org/thlorenz/ansicolors.png)](http://next.travis-ci.org/thlorenz/ansicolors)
Functions that surround a string with ansicolor codes so it prints in color.
## Installation
npm install ansicolors
## Usage
```js
var colors = require('ansicolors');
// foreground colors
var redHerring = colors.red('herring');
var blueMoon = colors.blue('moon');
var brighBlueMoon = colors.brightBlue('moon');
console.log(redHerring); // this will print 'herring' in red
console.log(blueMoon); // this 'moon' in blue
console.log(brightBlueMoon); // I think you got the idea
// background colors
console.log(colors.bgYellow('printed on yellow background'));
console.log(colors.bgBrightBlue('printed on bright blue background'));
// mixing background and foreground colors
// below two lines have same result (order in which bg and fg are combined doesn't matter)
console.log(colors.bgYellow(colors.blue('printed on yellow background in blue')));
console.log(colors.blue(colors.bgYellow('printed on yellow background in blue')));
```
## Tests
Look at the [tests](https://github.com/thlorenz/ansicolors/blob/master/test/ansicolors.js) to see more examples and/or run them via:
npm explore ansicolors && npm test
## Alternatives
**ansicolors** tries to meet simple use cases with a very simple API. However, if you need a more powerful ansi formatting tool,
I'd suggest to look at the [features](https://github.com/TooTallNate/ansi.js#features) of the [ansi module](https://github.com/TooTallNate/ansi.js).
... ...
// ColorCodes explained: http://www.termsys.demon.co.uk/vtansi.htm
'use strict';
var colorNums = {
white : 37
, black : 30
, blue : 34
, cyan : 36
, green : 32
, magenta : 35
, red : 31
, yellow : 33
, brightBlack : 90
, brightRed : 91
, brightGreen : 92
, brightYellow : 93
, brightBlue : 94
, brightMagenta : 95
, brightCyan : 96
, brightWhite : 97
}
, backgroundColorNums = {
bgBlack : 40
, bgRed : 41
, bgGreen : 42
, bgYellow : 43
, bgBlue : 44
, bgMagenta : 45
, bgCyan : 46
, bgWhite : 47
, bgBrightBlack : 100
, bgBrightRed : 101
, bgBrightGreen : 102
, bgBrightYellow : 103
, bgBrightBlue : 104
, bgBrightMagenta : 105
, bgBrightCyan : 106
, bgBrightWhite : 107
}
, colors = {};
Object.keys(colorNums).forEach(function (k) {
colors[k] = function (s) {
return '\u001b[' + colorNums[k] + 'm' + s + '\u001b[39m';
};
});
Object.keys(backgroundColorNums).forEach(function (k) {
colors[k] = function (s) {
return '\u001b[' + backgroundColorNums[k] + 'm' + s + '\u001b[49m';
};
});
module.exports = colors;
... ...
{
"name": "ansicolors",
"version": "0.2.1",
"description": "Functions that surround a string with ansicolor codes so it prints in color.",
"main": "ansicolors.js",
"scripts": {
"test": "node test/*.js"
},
"repository": {
"type": "git",
"url": "git://github.com/thlorenz/ansicolors.git"
},
"keywords": [
"ansi",
"colors",
"highlight",
"string"
],
"author": "Thorsten Lorenz <thlorenz@gmx.de> (thlorenz.com)",
"license": "MIT",
"readmeFilename": "README.md",
"gitHead": "858847ca28e8b360d9b70eee0592700fa2ab087d",
"_from": "ansicolors@0.2.1",
"_resolved": "http://registry.npm.taobao.org/ansicolors/download/ansicolors-0.2.1.tgz"
}
\ No newline at end of file
... ...
'use strict';
var assert = require('assert')
, colors = require('..');
console.log('Foreground colors ..');
assert.equal(colors.white('printed in white'), '\u001b[37mprinted in white\u001b[39m');
assert.equal(colors.black('printed in black'), '\u001b[30mprinted in black\u001b[39m');
assert.equal(colors.brightBlack('printed in bright black'), '\u001b[90mprinted in bright black\u001b[39m');
assert.equal(colors.green('printed in green'), '\u001b[32mprinted in green\u001b[39m');
assert.equal(colors.brightGreen('printed in bright green'), '\u001b[92mprinted in bright green\u001b[39m');
assert.equal(colors.red('printed in red'), '\u001b[31mprinted in red\u001b[39m');
assert.equal(colors.brightRed('printed in bright red'), '\u001b[91mprinted in bright red\u001b[39m');
console.log('OK');
console.log('Background colors ..');
assert.equal(
colors.bgBlack('printed with black background')
, '\u001b[40mprinted with black background\u001b[49m'
);
assert.equal(
colors.bgYellow('printed with yellow background')
, '\u001b[43mprinted with yellow background\u001b[49m'
);
assert.equal(
colors.bgBrightYellow('printed with bright yellow background')
, '\u001b[103mprinted with bright yellow background\u001b[49m'
);
assert.equal(
colors.bgWhite('printed with white background')
, '\u001b[47mprinted with white background\u001b[49m'
);
console.log('OK');
console.log('Mixing background and foreground colors ..');
assert.equal(
colors.blue(colors.bgYellow('printed in blue with yellow background'))
, '\u001b[34m\u001b[43mprinted in blue with yellow background\u001b[49m\u001b[39m'
);
assert.equal(
colors.bgYellow(colors.blue('printed in blue with yellow background again'))
, '\u001b[43m\u001b[34mprinted in blue with yellow background again\u001b[39m\u001b[49m'
);
console.log('OK');
... ...
Thu Aug 17 2017 17:05:03 GMT+0800 (CST)
\ No newline at end of file
... ...
The MIT Licence.
Copyright (c) 2012, 2013, 2014, 2015, 2016, 2017 Michael Mclaughlin
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
... ...
![bignumber.js](https://raw.githubusercontent.com/MikeMcl/bignumber.js/gh-pages/bignumberjs.png)
A JavaScript library for arbitrary-precision decimal and non-decimal arithmetic.
[![Build Status](https://travis-ci.org/MikeMcl/bignumber.js.svg)](https://travis-ci.org/MikeMcl/bignumber.js)
<br />
## Features
- Faster, smaller, and perhaps easier to use than JavaScript versions of Java's BigDecimal
- 8 KB minified and gzipped
- Simple API but full-featured
- Works with numbers with or without fraction digits in bases from 2 to 64 inclusive
- Replicates the `toExponential`, `toFixed`, `toPrecision` and `toString` methods of JavaScript's Number type
- Includes a `toFraction` and a correctly-rounded `squareRoot` method
- Supports cryptographically-secure pseudo-random number generation
- No dependencies
- Wide platform compatibility: uses JavaScript 1.5 (ECMAScript 3) features only
- Comprehensive [documentation](http://mikemcl.github.io/bignumber.js/) and test set
![API](https://raw.githubusercontent.com/MikeMcl/bignumber.js/gh-pages/API.png)
If a smaller and simpler library is required see [big.js](https://github.com/MikeMcl/big.js/).
It's less than half the size but only works with decimal numbers and only has half the methods.
It also does not allow `NaN` or `Infinity`, or have the configuration options of this library.
See also [decimal.js](https://github.com/MikeMcl/decimal.js/), which among other things adds support for non-integer powers, and performs all operations to a specified number of significant digits.
## Load
The library is the single JavaScript file *bignumber.js* (or minified, *bignumber.min.js*).
```html
<script src='relative/path/to/bignumber.js'></script>
```
For [Node.js](http://nodejs.org), the library is available from the [npm](https://npmjs.org/) registry
$ npm install bignumber.js
```javascript
var BigNumber = require('bignumber.js');
```
To load with AMD loader libraries such as [requireJS](http://requirejs.org/):
```javascript
require(['path/to/bignumber'], function(BigNumber) {
// Use BigNumber here in local scope. No global BigNumber.
});
```
## Use
*In all examples below, `var`, semicolons and `toString` calls are not shown.
If a commented-out value is in quotes it means `toString` has been called on the preceding expression.*
The library exports a single function: `BigNumber`, the constructor of BigNumber instances.
It accepts a value of type number *(up to 15 significant digits only)*, string or BigNumber object,
```javascript
x = new BigNumber(123.4567)
y = new BigNumber('123456.7e-3')
z = new BigNumber(x)
x.equals(y) && y.equals(z) && x.equals(z) // true
```
and a base from 2 to 64 inclusive can be specified.
```javascript
x = new BigNumber(1011, 2) // "11"
y = new BigNumber('zz.9', 36) // "1295.25"
z = x.plus(y) // "1306.25"
```
A BigNumber is immutable in the sense that it is not changed by its methods.
```javascript
0.3 - 0.1 // 0.19999999999999998
x = new BigNumber(0.3)
x.minus(0.1) // "0.2"
x // "0.3"
```
The methods that return a BigNumber can be chained.
```javascript
x.dividedBy(y).plus(z).times(9).floor()
x.times('1.23456780123456789e+9').plus(9876.5432321).dividedBy('4444562598.111772').ceil()
```
Many method names have a shorter alias.
```javascript
x.squareRoot().dividedBy(y).toPower(3).equals(x.sqrt().div(y).pow(3)) // true
x.cmp(y.mod(z).neg()) == 1 && x.comparedTo(y.modulo(z).negated()) == 1 // true
```
Like JavaScript's number type, there are `toExponential`, `toFixed` and `toPrecision` methods
```javascript
x = new BigNumber(255.5)
x.toExponential(5) // "2.55500e+2"
x.toFixed(5) // "255.50000"
x.toPrecision(5) // "255.50"
x.toNumber() // 255.5
```
and a base can be specified for `toString`.
```javascript
x.toString(16) // "ff.8"
```
There is also a `toFormat` method which may be useful for internationalisation
```javascript
y = new BigNumber('1234567.898765')
y.toFormat(2) // "1,234,567.90"
```
The maximum number of decimal places of the result of an operation involving division (i.e. a division, square root, base conversion or negative power operation) is set using the `config` method of the `BigNumber` constructor.
The other arithmetic operations always give the exact result.
```javascript
BigNumber.config({ DECIMAL_PLACES: 10, ROUNDING_MODE: 4 })
x = new BigNumber(2);
y = new BigNumber(3);
z = x.div(y) // "0.6666666667"
z.sqrt() // "0.8164965809"
z.pow(-3) // "3.3749999995"
z.toString(2) // "0.1010101011"
z.times(z) // "0.44444444448888888889"
z.times(z).round(10) // "0.4444444445"
```
There is a `toFraction` method with an optional *maximum denominator* argument
```javascript
y = new BigNumber(355)
pi = y.dividedBy(113) // "3.1415929204"
pi.toFraction() // [ "7853982301", "2500000000" ]
pi.toFraction(1000) // [ "355", "113" ]
```
and `isNaN` and `isFinite` methods, as `NaN` and `Infinity` are valid `BigNumber` values.
```javascript
x = new BigNumber(NaN) // "NaN"
y = new BigNumber(Infinity) // "Infinity"
x.isNaN() && !y.isNaN() && !x.isFinite() && !y.isFinite() // true
```
The value of a BigNumber is stored in a decimal floating point format in terms of a coefficient, exponent and sign.
```javascript
x = new BigNumber(-123.456);
x.c // [ 123, 45600000000000 ] coefficient (i.e. significand)
x.e // 2 exponent
x.s // -1 sign
```
Multiple BigNumber constructors can be created, each with their own independent configuration which applies to all BigNumber's created from it.
```javascript
// Set DECIMAL_PLACES for the original BigNumber constructor
BigNumber.config({ DECIMAL_PLACES: 10 })
// Create another BigNumber constructor, optionally passing in a configuration object
BN = BigNumber.another({ DECIMAL_PLACES: 5 })
x = new BigNumber(1)
y = new BN(1)
x.div(3) // '0.3333333333'
y.div(3) // '0.33333'
```
For futher information see the [API](http://mikemcl.github.io/bignumber.js/) reference in the *doc* directory.
## Test
The *test* directory contains the test scripts for each method.
The tests can be run with Node or a browser. For Node use
$ npm test
or
$ node test/every-test
To test a single method, e.g.
$ node test/toFraction
For the browser, see *every-test.html* and *single-test.html* in the *test/browser* directory.
*bignumber-vs-number.html* enables some of the methods of bignumber.js to be compared with those of JavaScript's number type.
## Versions
Version 1.x.x of this library is still supported on the 'original' branch. The advantages of later versions are that they are considerably faster for numbers with many digits and that there are some added methods (see Change Log below). The disadvantages are more lines of code and increased code complexity, and the loss of simplicity in no longer having the coefficient of a BigNumber stored in base 10.
## Performance
See the [README](https://github.com/MikeMcl/bignumber.js/tree/master/perf) in the *perf* directory.
## Build
For Node, if [uglify-js](https://github.com/mishoo/UglifyJS2) is installed
npm install uglify-js -g
then
npm run build
will create *bignumber.min.js*.
A source map will also be created in the root directory.
## Feedback
Open an issue, or email
Michael
<a href="mailto:M8ch88l@gmail.com">M8ch88l@gmail.com</a>
## Licence
MIT.
See [LICENCE](https://github.com/MikeMcl/bignumber.js/blob/master/LICENCE).
## Change Log
#### 4.0.2
* 03/05/2017
* #120 Workaround Safari/Webkit bug.
#### 4.0.1
* 05/04/2017
* #121 BigNumber.default to BigNumber['default'].
#### 4.0.0
* 09/01/2017
* Replace BigNumber.isBigNumber method with isBigNumber prototype property.
#### 3.1.2
* 08/01/2017
* Minor documentation edit.
#### 3.1.1
* 08/01/2017
* Uncomment `isBigNumber` tests.
* Ignore dot files.
#### 3.1.0
* 08/01/2017
* Add `isBigNumber` method.
#### 3.0.2
* 08/01/2017
* Bugfix: Possible incorrect value of `ERRORS` after a `BigNumber.another` call (due to `parseNumeric` declaration in outer scope).
#### 3.0.1
* 23/11/2016
* Apply fix for old ipads with `%` issue, see #57 and #102.
* Correct error message.
#### 3.0.0
* 09/11/2016
* Remove `require('crypto')` - leave it to the user.
* Add `BigNumber.set` as `BigNumber.config` alias.
* Default `POW_PRECISION` to `0`.
#### 2.4.0
* 14/07/2016
* #97 Add exports to support ES6 imports.
#### 2.3.0
* 07/03/2016
* #86 Add modulus parameter to `toPower`.
#### 2.2.0
* 03/03/2016
* #91 Permit larger JS integers.
#### 2.1.4
* 15/12/2015
* Correct UMD.
#### 2.1.3
* 13/12/2015
* Refactor re global object and crypto availability when bundling.
#### 2.1.2
* 10/12/2015
* Bugfix: `window.crypto` not assigned to `crypto`.
#### 2.1.1
* 09/12/2015
* Prevent code bundler from adding `crypto` shim.
#### 2.1.0
* 26/10/2015
* For `valueOf` and `toJSON`, include the minus sign with negative zero.
#### 2.0.8
* 2/10/2015
* Internal round function bugfix.
#### 2.0.6
* 31/03/2015
* Add bower.json. Tweak division after in-depth review.
#### 2.0.5
* 25/03/2015
* Amend README. Remove bitcoin address.
#### 2.0.4
* 25/03/2015
* Critical bugfix #58: division.
#### 2.0.3
* 18/02/2015
* Amend README. Add source map.
#### 2.0.2
* 18/02/2015
* Correct links.
#### 2.0.1
* 18/02/2015
* Add `max`, `min`, `precision`, `random`, `shift`, `toDigits` and `truncated` methods.
* Add the short-forms: `add`, `mul`, `sd`, `sub` and `trunc`.
* Add an `another` method to enable multiple independent constructors to be created.
* Add support for the base 2, 8 and 16 prefixes `0b`, `0o` and `0x`.
* Enable a rounding mode to be specified as a second parameter to `toExponential`, `toFixed`, `toFormat` and `toPrecision`.
* Add a `CRYPTO` configuration property so cryptographically-secure pseudo-random number generation can be specified.
* Add a `MODULO_MODE` configuration property to enable the rounding mode used by the `modulo` operation to be specified.
* Add a `POW_PRECISION` configuration property to enable the number of significant digits calculated by the power operation to be limited.
* Improve code quality.
* Improve documentation.
#### 2.0.0
* 29/12/2014
* Add `dividedToIntegerBy`, `isInteger` and `toFormat` methods.
* Remove the following short-forms: `isF`, `isZ`, `toE`, `toF`, `toFr`, `toN`, `toP`, `toS`.
* Store a BigNumber's coefficient in base 1e14, rather than base 10.
* Add fast path for integers to BigNumber constructor.
* Incorporate the library into the online documentation.
#### 1.5.0
* 13/11/2014
* Add `toJSON` and `decimalPlaces` methods.
#### 1.4.1
* 08/06/2014
* Amend README.
#### 1.4.0
* 08/05/2014
* Add `toNumber`.
#### 1.3.0
* 08/11/2013
* Ensure correct rounding of `sqrt` in all, rather than almost all, cases.
* Maximum radix to 64.
#### 1.2.1
* 17/10/2013
* Sign of zero when x < 0 and x + (-x) = 0.
#### 1.2.0
* 19/9/2013
* Throw Error objects for stack.
#### 1.1.1
* 22/8/2013
* Show original value in constructor error message.
#### 1.1.0
* 1/8/2013
* Allow numbers with trailing radix point.
#### 1.0.1
* Bugfix: error messages with incorrect method name
#### 1.0.0
* 8/11/2012
* Initial release
... ...
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//# sourceMappingURL=bignumber.js.map
\ No newline at end of file
... ...
{
"name": "bignumber.js",
"main": "bignumber.js",
"version": "4.0.2",
"homepage": "https://github.com/MikeMcl/bignumber.js",
"authors": [
"Michael Mclaughlin <M8ch88l@gmail.com>"
],
"description": "A library for arbitrary-precision decimal and non-decimal arithmetic",
"moduleType": [
"amd",
"globals",
"node"
],
"keywords": [
"arbitrary",
"precision",
"arithmetic",
"big",
"number",
"decimal",
"float",
"biginteger",
"bigdecimal",
"bignumber",
"bigint",
"bignum"
],
"license": "MIT",
"ignore": [
".*",
"*.json",
"test"
]
}
... ...
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<title>bignumber.js API</title>
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</head>
<body>
<div class="nav">
<a class='nav-title' href="#">API</a>
<b> CONSTRUCTOR </b>
<ul>
<li><a href="#bignumber">BigNumber</a></li>
</ul>
<a href="#methods">Methods</a>
<ul>
<li><a href="#another">another</a></li>
<li><a href="#config" >config</a></li>
<li>
<ul class="inset">
<li><a href="#decimal-places">DECIMAL_PLACES</a></li>
<li><a href="#rounding-mode" >ROUNDING_MODE</a></li>
<li><a href="#exponential-at">EXPONENTIAL_AT</a></li>
<li><a href="#range" >RANGE</a></li>
<li><a href="#errors" >ERRORS</a></li>
<li><a href="#crypto" >CRYPTO</a></li>
<li><a href="#modulo-mode" >MODULO_MODE</a></li>
<li><a href="#pow-precision" >POW_PRECISION</a></li>
<li><a href="#format" >FORMAT</a></li>
</ul>
</li>
<li><a href="#max" >max</a></li>
<li><a href="#min" >min</a></li>
<li><a href="#random">random</a></li>
</ul>
<a href="#constructor-properties">Properties</a>
<ul>
<li><a href="#round-up" >ROUND_UP</a></li>
<li><a href="#round-down" >ROUND_DOWN</a></li>
<li><a href="#round-ceil" >ROUND_CEIL</a></li>
<li><a href="#round-floor" >ROUND_FLOOR</a></li>
<li><a href="#round-half-up" >ROUND_HALF_UP</a></li>
<li><a href="#round-half-down" >ROUND_HALF_DOWN</a></li>
<li><a href="#round-half-even" >ROUND_HALF_EVEN</a></li>
<li><a href="#round-half-ceil" >ROUND_HALF_CEIL</a></li>
<li><a href="#round-half-floor">ROUND_HALF_FLOOR</a></li>
</ul>
<b> INSTANCE </b>
<a href="#prototype-methods">Methods</a>
<ul>
<li><a href="#abs" >absoluteValue </a><span>abs</span> </li>
<li><a href="#ceil" >ceil </a> </li>
<li><a href="#cmp" >comparedTo </a><span>cmp</span> </li>
<li><a href="#dp" >decimalPlaces </a><span>dp</span> </li>
<li><a href="#div" >dividedBy </a><span>div</span> </li>
<li><a href="#divInt" >dividedToIntegerBy </a><span>divToInt</span></li>
<li><a href="#eq" >equals </a><span>eq</span> </li>
<li><a href="#floor" >floor </a> </li>
<li><a href="#gt" >greaterThan </a><span>gt</span> </li>
<li><a href="#gte" >greaterThanOrEqualTo</a><span>gte</span> </li>
<li><a href="#isF" >isFinite </a> </li>
<li><a href="#isInt" >isInteger </a><span>isInt</span> </li>
<li><a href="#isNaN" >isNaN </a> </li>
<li><a href="#isNeg" >isNegative </a><span>isNeg</span> </li>
<li><a href="#isZ" >isZero </a> </li>
<li><a href="#lt" >lessThan </a><span>lt</span> </li>
<li><a href="#lte" >lessThanOrEqualTo </a><span>lte</span> </li>
<li><a href="#minus" >minus </a><span>sub</span> </li>
<li><a href="#mod" >modulo </a><span>mod</span> </li>
<li><a href="#neg" >negated </a><span>neg</span> </li>
<li><a href="#plus" >plus </a><span>add</span> </li>
<li><a href="#sd" >precision </a><span>sd</span> </li>
<li><a href="#round" >round </a> </li>
<li><a href="#shift" >shift </a> </li>
<li><a href="#sqrt" >squareRoot </a><span>sqrt</span> </li>
<li><a href="#times" >times </a><span>mul</span> </li>
<li><a href="#toD" >toDigits </a> </li>
<li><a href="#toE" >toExponential </a> </li>
<li><a href="#toFix" >toFixed </a> </li>
<li><a href="#toFor" >toFormat </a> </li>
<li><a href="#toFr" >toFraction </a> </li>
<li><a href="#toJSON" >toJSON </a> </li>
<li><a href="#toN" >toNumber </a> </li>
<li><a href="#pow" >toPower </a><span>pow</span> </li>
<li><a href="#toP" >toPrecision </a> </li>
<li><a href="#toS" >toString </a> </li>
<li><a href="#trunc" >truncated </a><span>trunc</span> </li>
<li><a href="#valueOf">valueOf </a> </li>
</ul>
<a href="#instance-properties">Properties</a>
<ul>
<li><a href="#coefficient">c: coefficient</a></li>
<li><a href="#exponent" >e: exponent</a></li>
<li><a href="#sign" >s: sign</a></li>
<li><a href="#isbig" >isBigNumber</a></li>
</ul>
<a href="#zero-nan-infinity">Zero, NaN &amp; Infinity</a>
<a href="#Errors">Errors</a>
<a class='end' href="#faq">FAQ</a>
</div>
<div class="container">
<h1>bignumber<span id='js'>.js</span></h1>
<p>A JavaScript library for arbitrary-precision arithmetic.</p>
<p><a href="https://github.com/MikeMcl/bignumber.js">Hosted on GitHub</a>. </p>
<h2>API</h2>
<p>
See the <a href='https://github.com/MikeMcl/bignumber.js'>README</a> on GitHub for a
quick-start introduction.
</p>
<p>
In all examples below, <code>var</code> and semicolons are not shown, and if a commented-out
value is in quotes it means <code>toString</code> has been called on the preceding expression.
</p>
<h3>CONSTRUCTOR</h3>
<h5 id="bignumber">
BigNumber<code class='inset'>BigNumber(value [, base]) <i>&rArr; BigNumber</i></code>
</h5>
<dl>
<dt><code>value</code></dt>
<dd>
<i>number|string|BigNumber</i>: see <a href='#range'>RANGE</a> for
range.
</dd>
<dd>
A numeric value.
</dd>
<dd>
Legitimate values include &plusmn;<code>0</code>, &plusmn;<code>Infinity</code> and
<code>NaN</code>.
</dd>
<dd>
Values of type <em>number</em> with more than <code>15</code> significant digits are
considered invalid (if <a href='#errors'><code>ERRORS</code></a> is true) as calling
<code><a href='#toS'>toString</a></code> or <code><a href='#valueOf'>valueOf</a></code> on
such numbers may not result in the intended value.
<pre>console.log( 823456789123456.3 ); // 823456789123456.2</pre>
</dd>
<dd>
There is no limit to the number of digits of a value of type <em>string</em> (other than
that of JavaScript's maximum array size).
</dd>
<dd>
Decimal string values may be in exponential, as well as normal (fixed-point) notation.
Non-decimal values must be in normal notation.
</dd>
<dd>
String values in hexadecimal literal form, e.g. <code>'0xff'</code>, are valid, as are
string values with the octal and binary prefixs <code>'0o'</code> and <code>'0b'</code>.
String values in octal literal form without the prefix will be interpreted as
decimals, e.g. <code>'011'</code> is interpreted as 11, not 9.
</dd>
<dd>Values in any base may have fraction digits.</dd>
<dd>
For bases from <code>10</code> to <code>36</code>, lower and/or upper case letters can be
used to represent values from <code>10</code> to <code>35</code>.
</dd>
<dd>
For bases above 36, <code>a-z</code> represents values from <code>10</code> to
<code>35</code>, <code>A-Z</code> from <code>36</code> to <code>61</code>, and
<code>$</code> and <code>_</code> represent <code>62</code> and <code>63</code> respectively
<i>(this can be changed by editing the <code>ALPHABET</code> variable near the top of the
source file)</i>.
</dd>
</dl>
<dl>
<dt><code>base</code></dt>
<dd>
<i>number</i>: integer, <code>2</code> to <code>64</code> inclusive
</dd>
<dd>The base of <code>value</code>.</dd>
<dd>
If <code>base</code> is omitted, or is <code>null</code> or <code>undefined</code>, base
<code>10</code> is assumed.
</dd>
</dl>
<br />
<p>Returns a new instance of a BigNumber object.</p>
<p>
If a base is specified, the value is rounded according to
the current <a href='#decimal-places'><code>DECIMAL_PLACES</code></a> and
<a href='#rounding-mode'><code>ROUNDING_MODE</code></a> configuration.
</p>
<p>
See <a href='#Errors'>Errors</a> for the treatment of an invalid <code>value</code> or
<code>base</code>.
</p>
<pre>
x = new BigNumber(9) // '9'
y = new BigNumber(x) // '9'
// 'new' is optional if ERRORS is false
BigNumber(435.345) // '435.345'
new BigNumber('5032485723458348569331745.33434346346912144534543')
new BigNumber('4.321e+4') // '43210'
new BigNumber('-735.0918e-430') // '-7.350918e-428'
new BigNumber(Infinity) // 'Infinity'
new BigNumber(NaN) // 'NaN'
new BigNumber('.5') // '0.5'
new BigNumber('+2') // '2'
new BigNumber(-10110100.1, 2) // '-180.5'
new BigNumber(-0b10110100.1) // '-180.5'
new BigNumber('123412421.234324', 5) // '607236.557696'
new BigNumber('ff.8', 16) // '255.5'
new BigNumber('0xff.8') // '255.5'</pre>
<p>
The following throws <code>'not a base 2 number'</code> if
<a href='#errors'><code>ERRORS</code></a> is true, otherwise it returns a BigNumber with value
<code>NaN</code>.
</p>
<pre>new BigNumber(9, 2)</pre>
<p>
The following throws <code>'number type has more than 15 significant digits'</code> if
<a href='#errors'><code>ERRORS</code></a> is true, otherwise it returns a BigNumber with value
<code>96517860459076820</code>.
</p>
<pre>new BigNumber(96517860459076817.4395)</pre>
<p>
The following throws <code>'not a number'</code> if <a href='#errors'><code>ERRORS</code></a>
is true, otherwise it returns a BigNumber with value <code>NaN</code>.
</p>
<pre>new BigNumber('blurgh')</pre>
<p>
A value is only rounded by the constructor if a base is specified.
</p>
<pre>BigNumber.config({ DECIMAL_PLACES: 5 })
new BigNumber(1.23456789) // '1.23456789'
new BigNumber(1.23456789, 10) // '1.23457'</pre>
<h4 id="methods">Methods</h4>
<p>The static methods of a BigNumber constructor.</p>
<h5 id="another">
another<code class='inset'>.another([obj]) <i>&rArr; BigNumber constructor</i></code>
</h5>
<p><code>obj</code>: <i>object</i></p>
<p>
Returns a new independent BigNumber constructor with configuration as described by
<code>obj</code> (see <a href='#config'><code>config</code></a>), or with the default
configuration if <code>obj</code> is <code>null</code> or <code>undefined</code>.
</p>
<pre>BigNumber.config({ DECIMAL_PLACES: 5 })
BN = BigNumber.another({ DECIMAL_PLACES: 9 })
x = new BigNumber(1)
y = new BN(1)
x.div(3) // 0.33333
y.div(3) // 0.333333333
// BN = BigNumber.another({ DECIMAL_PLACES: 9 }) is equivalent to:
BN = BigNumber.another()
BN.config({ DECIMAL_PLACES: 9 })</pre>
<h5 id="config">config<code class='inset'>set([obj]) <i>&rArr; object</i></code></h5>
<p>
<code>obj</code>: <i>object</i>: an object that contains some or all of the following
properties.
</p>
<p>Configures the settings for this particular BigNumber constructor.</p>
<p><i>Note: the configuration can also be supplied as an argument list, see below.</i></p>
<dl class='inset'>
<dt id="decimal-places"><code><b>DECIMAL_PLACES</b></code></dt>
<dd>
<i>number</i>: integer, <code>0</code> to <code>1e+9</code> inclusive<br />
Default value: <code>20</code>
</dd>
<dd>
The <u>maximum</u> number of decimal places of the results of operations involving
division, i.e. division, square root and base conversion operations, and power
operations with negative exponents.<br />
</dd>
<dd>
<pre>BigNumber.config({ DECIMAL_PLACES: 5 })
BigNumber.set({ DECIMAL_PLACES: 5 }) // equivalent
BigNumber.config(5) // equivalent</pre>
</dd>
<dt id="rounding-mode"><code><b>ROUNDING_MODE</b></code></dt>
<dd>
<i>number</i>: integer, <code>0</code> to <code>8</code> inclusive<br />
Default value: <code>4</code> <a href="#round-half-up">(<code>ROUND_HALF_UP</code>)</a>
</dd>
<dd>
The rounding mode used in the above operations and the default rounding mode of
<a href='#round'><code>round</code></a>,
<a href='#toE'><code>toExponential</code></a>,
<a href='#toFix'><code>toFixed</code></a>,
<a href='#toFor'><code>toFormat</code></a> and
<a href='#toP'><code>toPrecision</code></a>.
</dd>
<dd>The modes are available as enumerated properties of the BigNumber constructor.</dd>
<dd>
<pre>BigNumber.config({ ROUNDING_MODE: 0 })
BigNumber.config(null, BigNumber.ROUND_UP) // equivalent</pre>
</dd>
<dt id="exponential-at"><code><b>EXPONENTIAL_AT</b></code></dt>
<dd>
<i>number</i>: integer, magnitude <code>0</code> to <code>1e+9</code> inclusive, or
<br />
<i>number</i>[]: [ integer <code>-1e+9</code> to <code>0</code> inclusive, integer
<code>0</code> to <code>1e+9</code> inclusive ]<br />
Default value: <code>[-7, 20]</code>
</dd>
<dd>
The exponent value(s) at which <code>toString</code> returns exponential notation.
</dd>
<dd>
If a single number is assigned, the value is the exponent magnitude.<br />
If an array of two numbers is assigned then the first number is the negative exponent
value at and beneath which exponential notation is used, and the second number is the
positive exponent value at and above which the same.
</dd>
<dd>
For example, to emulate JavaScript numbers in terms of the exponent values at which they
begin to use exponential notation, use <code>[-7, 20]</code>.
</dd>
<dd>
<pre>BigNumber.config({ EXPONENTIAL_AT: 2 })
new BigNumber(12.3) // '12.3' e is only 1
new BigNumber(123) // '1.23e+2'
new BigNumber(0.123) // '0.123' e is only -1
new BigNumber(0.0123) // '1.23e-2'
BigNumber.config({ EXPONENTIAL_AT: [-7, 20] })
new BigNumber(123456789) // '123456789' e is only 8
new BigNumber(0.000000123) // '1.23e-7'
// Almost never return exponential notation:
BigNumber.config({ EXPONENTIAL_AT: 1e+9 })
// Always return exponential notation:
BigNumber.config({ EXPONENTIAL_AT: 0 })</pre>
</dd>
<dd>
Regardless of the value of <code>EXPONENTIAL_AT</code>, the <code>toFixed</code> method
will always return a value in normal notation and the <code>toExponential</code> method
will always return a value in exponential form.
</dd>
<dd>
Calling <code>toString</code> with a base argument, e.g. <code>toString(10)</code>, will
also always return normal notation.
</dd>
<dt id="range"><code><b>RANGE</b></code></dt>
<dd>
<i>number</i>: integer, magnitude <code>1</code> to <code>1e+9</code> inclusive, or
<br />
<i>number</i>[]: [ integer <code>-1e+9</code> to <code>-1</code> inclusive, integer
<code>1</code> to <code>1e+9</code> inclusive ]<br />
Default value: <code>[-1e+9, 1e+9]</code>
</dd>
<dd>
The exponent value(s) beyond which overflow to <code>Infinity</code> and underflow to
zero occurs.
</dd>
<dd>
If a single number is assigned, it is the maximum exponent magnitude: values wth a
positive exponent of greater magnitude become <code>Infinity</code> and those with a
negative exponent of greater magnitude become zero.
<dd>
If an array of two numbers is assigned then the first number is the negative exponent
limit and the second number is the positive exponent limit.
</dd>
<dd>
For example, to emulate JavaScript numbers in terms of the exponent values at which they
become zero and <code>Infinity</code>, use <code>[-324, 308]</code>.
</dd>
<dd>
<pre>BigNumber.config({ RANGE: 500 })
BigNumber.config().RANGE // [ -500, 500 ]
new BigNumber('9.999e499') // '9.999e+499'
new BigNumber('1e500') // 'Infinity'
new BigNumber('1e-499') // '1e-499'
new BigNumber('1e-500') // '0'
BigNumber.config({ RANGE: [-3, 4] })
new BigNumber(99999) // '99999' e is only 4
new BigNumber(100000) // 'Infinity' e is 5
new BigNumber(0.001) // '0.01' e is only -3
new BigNumber(0.0001) // '0' e is -4</pre>
</dd>
<dd>
The largest possible magnitude of a finite BigNumber is
<code>9.999...e+1000000000</code>.<br />
The smallest possible magnitude of a non-zero BigNumber is <code>1e-1000000000</code>.
</dd>
<dt id="errors"><code><b>ERRORS</b></code></dt>
<dd>
<i>boolean|number</i>: <code>true</code>, <code>false</code>, <code>0</code> or
<code>1</code>.<br />
Default value: <code>true</code>
</dd>
<dd>
The value that determines whether BigNumber Errors are thrown.<br />
If <code>ERRORS</code> is false, no errors will be thrown.
</dd>
<dd>See <a href='#Errors'>Errors</a>.</dd>
<dd><pre>BigNumber.config({ ERRORS: false })</pre></dd>
<dt id="crypto"><code><b>CRYPTO</b></code></dt>
<dd>
<i>boolean|number</i>: <code>true</code>, <code>false</code>, <code>0</code> or
<code>1</code>.<br />
Default value: <code>false</code>
</dd>
<dd>
The value that determines whether cryptographically-secure pseudo-random number
generation is used.
</dd>
<dd>
If <code>CRYPTO</code> is set to <code>true</code> then the
<a href='#random'><code>random</code></a> method will generate random digits using
<code>crypto.getRandomValues</code> in browsers that support it, or
<code>crypto.randomBytes</code> if using a version of Node.js that supports it.
</dd>
<dd>
If neither function is supported by the host environment then attempting to set
<code>CRYPTO</code> to <code>true</code> will fail, and if <code>ERRORS</code>
is <code>true</code> an exception will be thrown.
</dd>
<dd>
If <code>CRYPTO</code> is <code>false</code> then the source of randomness used will be
<code>Math.random</code> (which is assumed to generate at least <code>30</code> bits of
randomness).
</dd>
<dd>See <a href='#random'><code>random</code></a>.</dd>
<dd>
<pre>BigNumber.config({ CRYPTO: true })
BigNumber.config().CRYPTO // true
BigNumber.random() // 0.54340758610486147524</pre>
</dd>
<dt id="modulo-mode"><code><b>MODULO_MODE</b></code></dt>
<dd>
<i>number</i>: integer, <code>0</code> to <code>9</code> inclusive<br />
Default value: <code>1</code> (<a href="#round-down"><code>ROUND_DOWN</code></a>)
</dd>
<dd>The modulo mode used when calculating the modulus: <code>a mod n</code>.</dd>
<dd>
The quotient, <code>q = a / n</code>, is calculated according to the
<a href='#rounding-mode'><code>ROUNDING_MODE</code></a> that corresponds to the chosen
<code>MODULO_MODE</code>.
</dd>
<dd>The remainder, <code>r</code>, is calculated as: <code>r = a - n * q</code>.</dd>
<dd>
The modes that are most commonly used for the modulus/remainder operation are shown in
the following table. Although the other rounding modes can be used, they may not give
useful results.
</dd>
<dd>
<table>
<tr><th>Property</th><th>Value</th><th>Description</th></tr>
<tr>
<td><b>ROUND_UP</b></td><td class='centre'>0</td>
<td>
The remainder is positive if the dividend is negative, otherwise it is negative.
</td>
</tr>
<tr>
<td><b>ROUND_DOWN</b></td><td class='centre'>1</td>
<td>
The remainder has the same sign as the dividend.<br />
This uses 'truncating division' and matches the behaviour of JavaScript's
remainder operator <code>%</code>.
</td>
</tr>
<tr>
<td><b>ROUND_FLOOR</b></td><td class='centre'>3</td>
<td>
The remainder has the same sign as the divisor.<br />
This matches Python's <code>%</code> operator.
</td>
</tr>
<tr>
<td><b>ROUND_HALF_EVEN</b></td><td class='centre'>6</td>
<td>The <i>IEEE 754</i> remainder function.</td>
</tr>
<tr>
<td><b>EUCLID</b></td><td class='centre'>9</td>
<td>
The remainder is always positive. Euclidian division: <br />
<code>q = sign(n) * floor(a / abs(n))</code>
</td>
</tr>
</table>
</dd>
<dd>
The rounding/modulo modes are available as enumerated properties of the BigNumber
constructor.
</dd>
<dd>See <a href='#mod'><code>modulo</code></a>.</dd>
<dd>
<pre>BigNumber.config({ MODULO_MODE: BigNumber.EUCLID })
BigNumber.config({ MODULO_MODE: 9 }) // equivalent</pre>
</dd>
<dt id="pow-precision"><code><b>POW_PRECISION</b></code></dt>
<dd>
<i>number</i>: integer, <code>0</code> to <code>1e+9</code> inclusive.<br />
Default value: <code>0</code>
</dd>
<dd>
The <i>maximum</i> number of significant digits of the result of the power operation
(unless a modulus is specified).
</dd>
<dd>If set to <code>0</code>, the number of signifcant digits will not be limited.</dd>
<dd>See <a href='#pow'><code>toPower</code></a>.</dd>
<dd><pre>BigNumber.config({ POW_PRECISION: 100 })</pre></dd>
<dt id="format"><code><b>FORMAT</b></code></dt>
<dd><i>object</i></dd>
<dd>
The <code>FORMAT</code> object configures the format of the string returned by the
<a href='#toFor'><code>toFormat</code></a> method.
</dd>
<dd>
The example below shows the properties of the <code>FORMAT</code> object that are
recognised, and their default values.
</dd>
<dd>
Unlike the other configuration properties, the values of the properties of the
<code>FORMAT</code> object will not be checked for validity. The existing
<code>FORMAT</code> object will simply be replaced by the object that is passed in.
Note that all the properties shown below do not have to be included.
</dd>
<dd>See <a href='#toFor'><code>toFormat</code></a> for examples of usage.</dd>
<dd>
<pre>
BigNumber.config({
FORMAT: {
// the decimal separator
decimalSeparator: '.',
// the grouping separator of the integer part
groupSeparator: ',',
// the primary grouping size of the integer part
groupSize: 3,
// the secondary grouping size of the integer part
secondaryGroupSize: 0,
// the grouping separator of the fraction part
fractionGroupSeparator: ' ',
// the grouping size of the fraction part
fractionGroupSize: 0
}
});</pre>
</dd>
</dl>
<br />
<p>Returns an object with the above properties and their current values.</p>
<p>
If the value to be assigned to any of the above properties is <code>null</code> or
<code>undefined</code> it is ignored.
</p>
<p>See <a href='#Errors'>Errors</a> for the treatment of invalid values.</p>
<pre>
BigNumber.config({
DECIMAL_PLACES: 40,
ROUNDING_MODE: BigNumber.ROUND_HALF_CEIL,
EXPONENTIAL_AT: [-10, 20],
RANGE: [-500, 500],
ERRORS: true,
CRYPTO: true,
MODULO_MODE: BigNumber.ROUND_FLOOR,
POW_PRECISION: 80,
FORMAT: {
groupSize: 3,
groupSeparator: ' ',
decimalSeparator: ','
}
});
// Alternatively but equivalently (excluding FORMAT):
BigNumber.config( 40, 7, [-10, 20], 500, 1, 1, 3, 80 )
obj = BigNumber.config();
obj.ERRORS // true
obj.RANGE // [-500, 500]</pre>
<h5 id="max">
max<code class='inset'>.max([arg1 [, arg2, ...]]) <i>&rArr; BigNumber</i></code>
</h5>
<p>
<code>arg1</code>, <code>arg2</code>, ...: <i>number|string|BigNumber</i><br />
<i>See <code><a href="#bignumber">BigNumber</a></code> for further parameter details.</i>
</p>
<p>
Returns a BigNumber whose value is the maximum of <code>arg1</code>,
<code>arg2</code>,... .
</p>
<p>The argument to this method can also be an array of values.</p>
<p>The return value is always exact and unrounded.</p>
<pre>x = new BigNumber('3257869345.0378653')
BigNumber.max(4e9, x, '123456789.9') // '4000000000'
arr = [12, '13', new BigNumber(14)]
BigNumber.max(arr) // '14'</pre>
<h5 id="min">
min<code class='inset'>.min([arg1 [, arg2, ...]]) <i>&rArr; BigNumber</i></code>
</h5>
<p>
<code>arg1</code>, <code>arg2</code>, ...: <i>number|string|BigNumber</i><br />
<i>See <code><a href="#bignumber">BigNumber</a></code> for further parameter details.</i>
</p>
<p>
Returns a BigNumber whose value is the minimum of <code>arg1</code>,
<code>arg2</code>,... .
</p>
<p>The argument to this method can also be an array of values.</p>
<p>The return value is always exact and unrounded.</p>
<pre>x = new BigNumber('3257869345.0378653')
BigNumber.min(4e9, x, '123456789.9') // '123456789.9'
arr = [2, new BigNumber(-14), '-15.9999', -12]
BigNumber.min(arr) // '-15.9999'</pre>
<h5 id="random">
random<code class='inset'>.random([dp]) <i>&rArr; BigNumber</i></code>
</h5>
<p><code>dp</code>: <i>number</i>: integer, <code>0</code> to <code>1e+9</code> inclusive</p>
<p>
Returns a new BigNumber with a pseudo-random value equal to or greater than <code>0</code> and
less than <code>1</code>.
</p>
<p>
The return value will have <code>dp</code> decimal places (or less if trailing zeros are
produced).<br />
If <code>dp</code> is omitted then the number of decimal places will default to the current
<a href='#decimal-places'><code>DECIMAL_PLACES</code></a> setting.
</p>
<p>
Depending on the value of this BigNumber constructor's
<a href='#crypto'><code>CRYPTO</code></a> setting and the support for the
<code>crypto</code> object in the host environment, the random digits of the return value are
generated by either <code>Math.random</code> (fastest), <code>crypto.getRandomValues</code>
(Web Cryptography API in recent browsers) or <code>crypto.randomBytes</code> (Node.js).
</p>
<p>
If <a href='#crypto'><code>CRYPTO</code></a> is <code>true</code>, i.e. one of the
<code>crypto</code> methods is to be used, the value of a returned BigNumber should be
cryptographically-secure and statistically indistinguishable from a random value.
</p>
<pre>BigNumber.config({ DECIMAL_PLACES: 10 })
BigNumber.random() // '0.4117936847'
BigNumber.random(20) // '0.78193327636914089009'</pre>
<h4 id="constructor-properties">Properties</h4>
<p>
The library's enumerated rounding modes are stored as properties of the constructor.<br />
(They are not referenced internally by the library itself.)
</p>
<p>
Rounding modes <code>0</code> to <code>6</code> (inclusive) are the same as those of Java's
BigDecimal class.
</p>
<table>
<tr>
<th>Property</th>
<th>Value</th>
<th>Description</th>
</tr>
<tr>
<td id="round-up"><b>ROUND_UP</b></td>
<td class='centre'>0</td>
<td>Rounds away from zero</td>
</tr>
<tr>
<td id="round-down"><b>ROUND_DOWN</b></td>
<td class='centre'>1</td>
<td>Rounds towards zero</td>
</tr>
<tr>
<td id="round-ceil"><b>ROUND_CEIL</b></td>
<td class='centre'>2</td>
<td>Rounds towards <code>Infinity</code></td>
</tr>
<tr>
<td id="round-floor"><b>ROUND_FLOOR</b></td>
<td class='centre'>3</td>
<td>Rounds towards <code>-Infinity</code></td>
</tr>
<tr>
<td id="round-half-up"><b>ROUND_HALF_UP</b></td>
<td class='centre'>4</td>
<td>
Rounds towards nearest neighbour.<br />
If equidistant, rounds away from zero
</td>
</tr>
<tr>
<td id="round-half-down"><b>ROUND_HALF_DOWN</b></td>
<td class='centre'>5</td>
<td>
Rounds towards nearest neighbour.<br />
If equidistant, rounds towards zero
</td>
</tr>
<tr>
<td id="round-half-even"><b>ROUND_HALF_EVEN</b></td>
<td class='centre'>6</td>
<td>
Rounds towards nearest neighbour.<br />
If equidistant, rounds towards even neighbour
</td>
</tr>
<tr>
<td id="round-half-ceil"><b>ROUND_HALF_CEIL</b></td>
<td class='centre'>7</td>
<td>
Rounds towards nearest neighbour.<br />
If equidistant, rounds towards <code>Infinity</code>
</td>
</tr>
<tr>
<td id="round-half-floor"><b>ROUND_HALF_FLOOR</b></td>
<td class='centre'>8</td>
<td>
Rounds towards nearest neighbour.<br />
If equidistant, rounds towards <code>-Infinity</code>
</td>
</tr>
</table>
<pre>
BigNumber.config({ ROUNDING_MODE: BigNumber.ROUND_CEIL })
BigNumber.config({ ROUNDING_MODE: 2 }) // equivalent</pre>
<h3>INSTANCE</h3>
<h4 id="prototype-methods">Methods</h4>
<p>The methods inherited by a BigNumber instance from its constructor's prototype object.</p>
<p>A BigNumber is immutable in the sense that it is not changed by its methods. </p>
<p>
The treatment of &plusmn;<code>0</code>, &plusmn;<code>Infinity</code> and <code>NaN</code> is
consistent with how JavaScript treats these values.
</p>
<p>
Many method names have a shorter alias.<br />
(Internally, the library always uses the shorter method names.)
</p>
<h5 id="abs">absoluteValue<code class='inset'>.abs() <i>&rArr; BigNumber</i></code></h5>
<p>
Returns a BigNumber whose value is the absolute value, i.e. the magnitude, of the value of
this BigNumber.
</p>
<p>The return value is always exact and unrounded.</p>
<pre>
x = new BigNumber(-0.8)
y = x.absoluteValue() // '0.8'
z = y.abs() // '0.8'</pre>
<h5 id="ceil">ceil<code class='inset'>.ceil() <i>&rArr; BigNumber</i></code></h5>
<p>
Returns a BigNumber whose value is the value of this BigNumber rounded to
a whole number in the direction of positive <code>Infinity</code>.
</p>
<pre>
x = new BigNumber(1.3)
x.ceil() // '2'
y = new BigNumber(-1.8)
y.ceil() // '-1'</pre>
<h5 id="cmp">comparedTo<code class='inset'>.cmp(n [, base]) <i>&rArr; number</i></code></h5>
<p>
<code>n</code>: <i>number|string|BigNumber</i><br />
<code>base</code>: <i>number</i><br />
<i>See <a href="#bignumber">BigNumber</a> for further parameter details.</i>
</p>
<table>
<tr><th>Returns</th><th>&nbsp;</th></tr>
<tr>
<td class='centre'><code>1</code></td>
<td>If the value of this BigNumber is greater than the value of <code>n</code></td>
</tr>
<tr>
<td class='centre'><code>-1</code></td>
<td>If the value of this BigNumber is less than the value of <code>n</code></td>
</tr>
<tr>
<td class='centre'><code>0</code></td>
<td>If this BigNumber and <code>n</code> have the same value</td>
</tr>
<tr>
<td class='centre'><code>null</code></td>
<td>If the value of either this BigNumber or <code>n</code> is <code>NaN</code></td>
</tr>
</table>
<pre>
x = new BigNumber(Infinity)
y = new BigNumber(5)
x.comparedTo(y) // 1
x.comparedTo(x.minus(1)) // 0
y.cmp(NaN) // null
y.cmp('110', 2) // -1</pre>
<h5 id="dp">decimalPlaces<code class='inset'>.dp() <i>&rArr; number</i></code></h5>
<p>
Return the number of decimal places of the value of this BigNumber, or <code>null</code> if
the value of this BigNumber is &plusmn;<code>Infinity</code> or <code>NaN</code>.
</p>
<pre>
x = new BigNumber(123.45)
x.decimalPlaces() // 2
y = new BigNumber('9.9e-101')
y.dp() // 102</pre>
<h5 id="div">dividedBy<code class='inset'>.div(n [, base]) <i>&rArr; BigNumber</i></code>
</h5>
<p>
<code>n</code>: <i>number|string|BigNumber</i><br />
<code>base</code>: <i>number</i><br />
<i>See <a href="#bignumber">BigNumber</a> for further parameter details.</i>
</p>
<p>
Returns a BigNumber whose value is the value of this BigNumber divided by
<code>n</code>, rounded according to the current
<a href='#decimal-places'><code>DECIMAL_PLACES</code></a> and
<a href='#rounding-mode'><code>ROUNDING_MODE</code></a> configuration.
</p>
<pre>
x = new BigNumber(355)
y = new BigNumber(113)
x.dividedBy(y) // '3.14159292035398230088'
x.div(5) // '71'
x.div(47, 16) // '5'</pre>
<h5 id="divInt">
dividedToIntegerBy<code class='inset'>.divToInt(n [, base]) &rArr;
<i>BigNumber</i></code>
</h5>
<p>
<code>n</code>: <i>number|string|BigNumber</i><br />
<code>base</code>: <i>number</i><br />
<i>See <a href="#bignumber">BigNumber</a> for further parameter details.</i>
</p>
<p>
Return a BigNumber whose value is the integer part of dividing the value of this BigNumber by
<code>n</code>.
</p>
<pre>
x = new BigNumber(5)
y = new BigNumber(3)
x.dividedToIntegerBy(y) // '1'
x.divToInt(0.7) // '7'
x.divToInt('0.f', 16) // '5'</pre>
<h5 id="eq">equals<code class='inset'>.eq(n [, base]) <i>&rArr; boolean</i></code></h5>
<p>
<code>n</code>: <i>number|string|BigNumber</i><br />
<code>base</code>: <i>number</i><br />
<i>See <a href="#bignumber">BigNumber</a> for further parameter details.</i>
</p>
<p>
Returns <code>true</code> if the value of this BigNumber equals the value of <code>n</code>,
otherwise returns <code>false</code>.<br />
As with JavaScript, <code>NaN</code> does not equal <code>NaN</code>.
</p>
<p>Note: This method uses the <a href='#cmp'><code>comparedTo</code></a> method internally.</p>
<pre>
0 === 1e-324 // true
x = new BigNumber(0)
x.equals('1e-324') // false
BigNumber(-0).eq(x) // true ( -0 === 0 )
BigNumber(255).eq('ff', 16) // true
y = new BigNumber(NaN)
y.equals(NaN) // false</pre>
<h5 id="floor">floor<code class='inset'>.floor() <i>&rArr; BigNumber</i></code></h5>
<p>
Returns a BigNumber whose value is the value of this BigNumber rounded to a whole number in
the direction of negative <code>Infinity</code>.
</p>
<pre>
x = new BigNumber(1.8)
x.floor() // '1'
y = new BigNumber(-1.3)
y.floor() // '-2'</pre>
<h5 id="gt">greaterThan<code class='inset'>.gt(n [, base]) <i>&rArr; boolean</i></code></h5>
<p>
<code>n</code>: <i>number|string|BigNumber</i><br />
<code>base</code>: <i>number</i><br />
<i>See <a href="#bignumber">BigNumber</a> for further parameter details.</i>
</p>
<p>
Returns <code>true</code> if the value of this BigNumber is greater than the value of
<code>n</code>, otherwise returns <code>false</code>.
</p>
<p>Note: This method uses the <a href='#cmp'><code>comparedTo</code></a> method internally.</p>
<pre>
0.1 &gt; (0.3 - 0.2) // true
x = new BigNumber(0.1)
x.greaterThan(BigNumber(0.3).minus(0.2)) // false
BigNumber(0).gt(x) // false
BigNumber(11, 3).gt(11.1, 2) // true</pre>
<h5 id="gte">
greaterThanOrEqualTo<code class='inset'>.gte(n [, base]) <i>&rArr; boolean</i></code>
</h5>
<p>
<code>n</code>: <i>number|string|BigNumber</i><br />
<code>base</code>: <i>number</i><br />
<i>See <a href="#bignumber">BigNumber</a> for further parameter details.</i>
</p>
<p>
Returns <code>true</code> if the value of this BigNumber is greater than or equal to the value
of <code>n</code>, otherwise returns <code>false</code>.
</p>
<p>Note: This method uses the <a href='#cmp'><code>comparedTo</code></a> method internally.</p>
<pre>
(0.3 - 0.2) &gt;= 0.1 // false
x = new BigNumber(0.3).minus(0.2)
x.greaterThanOrEqualTo(0.1) // true
BigNumber(1).gte(x) // true
BigNumber(10, 18).gte('i', 36) // true</pre>
<h5 id="isF">isFinite<code class='inset'>.isFinite() <i>&rArr; boolean</i></code></h5>
<p>
Returns <code>true</code> if the value of this BigNumber is a finite number, otherwise
returns <code>false</code>.
</p>
<p>
The only possible non-finite values of a BigNumber are <code>NaN</code>, <code>Infinity</code>
and <code>-Infinity</code>.
</p>
<pre>
x = new BigNumber(1)
x.isFinite() // true
y = new BigNumber(Infinity)
y.isFinite() // false</pre>
<p>
Note: The native method <code>isFinite()</code> can be used if
<code>n &lt;= Number.MAX_VALUE</code>.
</p>
<h5 id="isInt">isInteger<code class='inset'>.isInt() <i>&rArr; boolean</i></code></h5>
<p>
Returns <code>true</code> if the value of this BigNumber is a whole number, otherwise returns
<code>false</code>.
</p>
<pre>
x = new BigNumber(1)
x.isInteger() // true
y = new BigNumber(123.456)
y.isInt() // false</pre>
<h5 id="isNaN">isNaN<code class='inset'>.isNaN() <i>&rArr; boolean</i></code></h5>
<p>
Returns <code>true</code> if the value of this BigNumber is <code>NaN</code>, otherwise
returns <code>false</code>.
</p>
<pre>
x = new BigNumber(NaN)
x.isNaN() // true
y = new BigNumber('Infinity')
y.isNaN() // false</pre>
<p>Note: The native method <code>isNaN()</code> can also be used.</p>
<h5 id="isNeg">isNegative<code class='inset'>.isNeg() <i>&rArr; boolean</i></code></h5>
<p>
Returns <code>true</code> if the value of this BigNumber is negative, otherwise returns
<code>false</code>.
</p>
<pre>
x = new BigNumber(-0)
x.isNegative() // true
y = new BigNumber(2)
y.isNeg() // false</pre>
<p>Note: <code>n &lt; 0</code> can be used if <code>n &lt;= -Number.MIN_VALUE</code>.</p>
<h5 id="isZ">isZero<code class='inset'>.isZero() <i>&rArr; boolean</i></code></h5>
<p>
Returns <code>true</code> if the value of this BigNumber is zero or minus zero, otherwise
returns <code>false</code>.
</p>
<pre>
x = new BigNumber(-0)
x.isZero() && x.isNeg() // true
y = new BigNumber(Infinity)
y.isZero() // false</pre>
<p>Note: <code>n == 0</code> can be used if <code>n &gt;= Number.MIN_VALUE</code>.</p>
<h5 id="lt">lessThan<code class='inset'>.lt(n [, base]) <i>&rArr; boolean</i></code></h5>
<p>
<code>n</code>: <i>number|string|BigNumber</i><br />
<code>base</code>: <i>number</i><br />
<i>See <a href="#bignumber">BigNumber</a> for further parameter details.</i>
</p>
<p>
Returns <code>true</code> if the value of this BigNumber is less than the value of
<code>n</code>, otherwise returns <code>false</code>.
</p>
<p>Note: This method uses the <a href='#cmp'><code>comparedTo</code></a> method internally.</p>
<pre>
(0.3 - 0.2) &lt; 0.1 // true
x = new BigNumber(0.3).minus(0.2)
x.lessThan(0.1) // false
BigNumber(0).lt(x) // true
BigNumber(11.1, 2).lt(11, 3) // true</pre>
<h5 id="lte">
lessThanOrEqualTo<code class='inset'>.lte(n [, base]) <i>&rArr; boolean</i></code>
</h5>
<p>
<code>n</code>: <i>number|string|BigNumber</i><br />
<code>base</code>: <i>number</i><br />
<i>See <a href="#bignumber">BigNumber</a> for further parameter details.</i>
</p>
<p>
Returns <code>true</code> if the value of this BigNumber is less than or equal to the value of
<code>n</code>, otherwise returns <code>false</code>.
</p>
<p>Note: This method uses the <a href='#cmp'><code>comparedTo</code></a> method internally.</p>
<pre>
0.1 &lt;= (0.3 - 0.2) // false
x = new BigNumber(0.1)
x.lessThanOrEqualTo(BigNumber(0.3).minus(0.2)) // true
BigNumber(-1).lte(x) // true
BigNumber(10, 18).lte('i', 36) // true</pre>
<h5 id="minus">
minus<code class='inset'>.minus(n [, base]) <i>&rArr; BigNumber</i></code>
</h5>
<p>
<code>n</code>: <i>number|string|BigNumber</i><br />
<code>base</code>: <i>number</i><br />
<i>See <a href="#bignumber">BigNumber</a> for further parameter details.</i>
</p>
<p>Returns a BigNumber whose value is the value of this BigNumber minus <code>n</code>.</p>
<p>The return value is always exact and unrounded.</p>
<pre>
0.3 - 0.1 // 0.19999999999999998
x = new BigNumber(0.3)
x.minus(0.1) // '0.2'
x.minus(0.6, 20) // '0'</pre>
<h5 id="mod">modulo<code class='inset'>.mod(n [, base]) <i>&rArr; BigNumber</i></code></h5>
<p>
<code>n</code>: <i>number|string|BigNumber</i><br />
<code>base</code>: <i>number</i><br />
<i>See <a href="#bignumber">BigNumber</a> for further parameter details.</i>
</p>
<p>
Returns a BigNumber whose value is the value of this BigNumber modulo <code>n</code>, i.e.
the integer remainder of dividing this BigNumber by <code>n</code>.
</p>
<p>
The value returned, and in particular its sign, is dependent on the value of the
<a href='#modulo-mode'><code>MODULO_MODE</code></a> setting of this BigNumber constructor.
If it is <code>1</code> (default value), the result will have the same sign as this BigNumber,
and it will match that of Javascript's <code>%</code> operator (within the limits of double
precision) and BigDecimal's <code>remainder</code> method.
</p>
<p>The return value is always exact and unrounded.</p>
<p>
See <a href='#modulo-mode'><code>MODULO_MODE</code></a> for a description of the other
modulo modes.
</p>
<pre>
1 % 0.9 // 0.09999999999999998
x = new BigNumber(1)
x.modulo(0.9) // '0.1'
y = new BigNumber(33)
y.mod('a', 33) // '3'</pre>
<h5 id="neg">negated<code class='inset'>.neg() <i>&rArr; BigNumber</i></code></h5>
<p>
Returns a BigNumber whose value is the value of this BigNumber negated, i.e. multiplied by
<code>-1</code>.
</p>
<pre>
x = new BigNumber(1.8)
x.negated() // '-1.8'
y = new BigNumber(-1.3)
y.neg() // '1.3'</pre>
<h5 id="plus">plus<code class='inset'>.plus(n [, base]) <i>&rArr; BigNumber</i></code></h5>
<p>
<code>n</code>: <i>number|string|BigNumber</i><br />
<code>base</code>: <i>number</i><br />
<i>See <a href="#bignumber">BigNumber</a> for further parameter details.</i>
</p>
<p>Returns a BigNumber whose value is the value of this BigNumber plus <code>n</code>.</p>
<p>The return value is always exact and unrounded.</p>
<pre>
0.1 + 0.2 // 0.30000000000000004
x = new BigNumber(0.1)
y = x.plus(0.2) // '0.3'
BigNumber(0.7).plus(x).plus(y) // '1'
x.plus('0.1', 8) // '0.225'</pre>
<h5 id="sd">precision<code class='inset'>.sd([z]) <i>&rArr; number</i></code></h5>
<p>
<code>z</code>: <i>boolean|number</i>: <code>true</code>, <code>false</code>, <code>0</code>
or <code>1</code>
</p>
<p>Returns the number of significant digits of the value of this BigNumber.</p>
<p>
If <code>z</code> is <code>true</code> or <code>1</code> then any trailing zeros of the
integer part of a number are counted as significant digits, otherwise they are not.
</p>
<pre>
x = new BigNumber(1.234)
x.precision() // 4
y = new BigNumber(987000)
y.sd() // 3
y.sd(true) // 6</pre>
<h5 id="round">round<code class='inset'>.round([dp [, rm]]) <i>&rArr; BigNumber</i></code></h5>
<p>
<code>dp</code>: <i>number</i>: integer, <code>0</code> to <code>1e+9</code> inclusive<br />
<code>rm</code>: <i>number</i>: integer, <code>0</code> to <code>8</code> inclusive
</p>
<p>
Returns a BigNumber whose value is the value of this BigNumber rounded by rounding mode
<code>rm</code> to a maximum of <code>dp</code> decimal places.
</p>
<p>
if <code>dp</code> is omitted, or is <code>null</code> or <code>undefined</code>, the
return value is <code>n</code> rounded to a whole number.<br />
if <code>rm</code> is omitted, or is <code>null</code> or <code>undefined</code>,
<a href='#rounding-mode'><code>ROUNDING_MODE</code></a> is used.
</p>
<p>
See <a href='#Errors'>Errors</a> for the treatment of other non-integer or out of range
<code>dp</code> or <code>rm</code> values.
</p>
<pre>
x = 1234.56
Math.round(x) // 1235
y = new BigNumber(x)
y.round() // '1235'
y.round(1) // '1234.6'
y.round(2) // '1234.56'
y.round(10) // '1234.56'
y.round(0, 1) // '1234'
y.round(0, 6) // '1235'
y.round(1, 1) // '1234.5'
y.round(1, BigNumber.ROUND_HALF_EVEN) // '1234.6'
y // '1234.56'</pre>
<h5 id="shift">shift<code class='inset'>.shift(n) <i>&rArr; BigNumber</i></code></h5>
<p>
<code>n</code>: <i>number</i>: integer,
<code>-9007199254740991</code> to <code>9007199254740991</code> inclusive
</p>
<p>
Returns a BigNumber whose value is the value of this BigNumber shifted <code>n</code> places.
<p>
The shift is of the decimal point, i.e. of powers of ten, and is to the left if <code>n</code>
is negative or to the right if <code>n</code> is positive.
</p>
<p>The return value is always exact and unrounded.</p>
<pre>
x = new BigNumber(1.23)
x.shift(3) // '1230'
x.shift(-3) // '0.00123'</pre>
<h5 id="sqrt">squareRoot<code class='inset'>.sqrt() <i>&rArr; BigNumber</i></code></h5>
<p>
Returns a BigNumber whose value is the square root of the value of this BigNumber,
rounded according to the current
<a href='#decimal-places'><code>DECIMAL_PLACES</code></a> and
<a href='#rounding-mode'><code>ROUNDING_MODE</code></a> configuration.
</p>
<p>
The return value will be correctly rounded, i.e. rounded as if the result was first calculated
to an infinite number of correct digits before rounding.
</p>
<pre>
x = new BigNumber(16)
x.squareRoot() // '4'
y = new BigNumber(3)
y.sqrt() // '1.73205080756887729353'</pre>
<h5 id="times">times<code class='inset'>.times(n [, base]) <i>&rArr; BigNumber</i></code></h5>
<p>
<code>n</code>: <i>number|string|BigNumber</i><br />
<code>base</code>: <i>number</i><br />
<i>See <a href="#bignumber">BigNumber</a> for further parameter details.</i>
</p>
<p>Returns a BigNumber whose value is the value of this BigNumber times <code>n</code>.</p>
<p>The return value is always exact and unrounded.</p>
<pre>
0.6 * 3 // 1.7999999999999998
x = new BigNumber(0.6)
y = x.times(3) // '1.8'
BigNumber('7e+500').times(y) // '1.26e+501'
x.times('-a', 16) // '-6'</pre>
<h5 id="toD">
toDigits<code class='inset'>.toDigits([sd [, rm]]) <i>&rArr; BigNumber</i></code>
</h5>
<p>
<code>sd</code>: <i>number</i>: integer, <code>1</code> to <code>1e+9</code> inclusive.<br />
<code>rm</code>: <i>number</i>: integer, <code>0</code> to <code>8</code> inclusive.
</p>
<p>
Returns a BigNumber whose value is the value of this BigNumber rounded to <code>sd</code>
significant digits using rounding mode <code>rm</code>.
</p>
<p>
If <code>sd</code> is omitted or is <code>null</code> or <code>undefined</code>, the return
value will not be rounded.<br />
If <code>rm</code> is omitted or is <code>null</code> or <code>undefined</code>,
<a href='#rounding-mode'><code>ROUNDING_MODE</code></a> will be used.
</p>
<p>
See <a href='#Errors'>Errors</a> for the treatment of other non-integer or out of range
<code>sd</code> or <code>rm</code> values.
</p>
<pre>
BigNumber.config({ precision: 5, rounding: 4 })
x = new BigNumber(9876.54321)
x.toDigits() // '9876.5'
x.toDigits(6) // '9876.54'
x.toDigits(6, BigNumber.ROUND_UP) // '9876.55'
x.toDigits(2) // '9900'
x.toDigits(2, 1) // '9800'
x // '9876.54321'</pre>
<h5 id="toE">
toExponential<code class='inset'>.toExponential([dp [, rm]]) <i>&rArr; string</i></code>
</h5>
<p>
<code>dp</code>: <i>number</i>: integer, <code>0</code> to <code>1e+9</code> inclusive<br />
<code>rm</code>: <i>number</i>: integer, <code>0</code> to <code>8</code> inclusive
</p>
<p>
Returns a string representing the value of this BigNumber in exponential notation rounded
using rounding mode <code>rm</code> to <code>dp</code> decimal places, i.e with one digit
before the decimal point and <code>dp</code> digits after it.
</p>
<p>
If the value of this BigNumber in exponential notation has fewer than <code>dp</code> fraction
digits, the return value will be appended with zeros accordingly.
</p>
<p>
If <code>dp</code> is omitted, or is <code>null</code> or <code>undefined</code>, the number
of digits after the decimal point defaults to the minimum number of digits necessary to
represent the value exactly.<br />
If <code>rm</code> is omitted or is <code>null</code> or <code>undefined</code>,
<a href='#rounding-mode'><code>ROUNDING_MODE</code></a> is used.
</p>
<p>
See <a href='#Errors'>Errors</a> for the treatment of other non-integer or out of range
<code>dp</code> or <code>rm</code> values.
</p>
<pre>
x = 45.6
y = new BigNumber(x)
x.toExponential() // '4.56e+1'
y.toExponential() // '4.56e+1'
x.toExponential(0) // '5e+1'
y.toExponential(0) // '5e+1'
x.toExponential(1) // '4.6e+1'
y.toExponential(1) // '4.6e+1'
y.toExponential(1, 1) // '4.5e+1' (ROUND_DOWN)
x.toExponential(3) // '4.560e+1'
y.toExponential(3) // '4.560e+1'</pre>
<h5 id="toFix">
toFixed<code class='inset'>.toFixed([dp [, rm]]) <i>&rArr; string</i></code>
</h5>
<p>
<code>dp</code>: <i>number</i>: integer, <code>0</code> to <code>1e+9</code> inclusive<br />
<code>rm</code>: <i>number</i>: integer, <code>0</code> to <code>8</code> inclusive
</p>
<p>
Returns a string representing the value of this BigNumber in normal (fixed-point) notation
rounded to <code>dp</code> decimal places using rounding mode <code>rm</code>.
</p>
<p>
If the value of this BigNumber in normal notation has fewer than <code>dp</code> fraction
digits, the return value will be appended with zeros accordingly.
</p>
<p>
Unlike <code>Number.prototype.toFixed</code>, which returns exponential notation if a number
is greater or equal to <code>10<sup>21</sup></code>, this method will always return normal
notation.
</p>
<p>
If <code>dp</code> is omitted or is <code>null</code> or <code>undefined</code>, the return
value will be unrounded and in normal notation. This is also unlike
<code>Number.prototype.toFixed</code>, which returns the value to zero decimal places.<br />
It is useful when fixed-point notation is required and the current
<a href="#exponential-at"><code>EXPONENTIAL_AT</code></a> setting causes
<code><a href='#toS'>toString</a></code> to return exponential notation.<br />
If <code>rm</code> is omitted or is <code>null</code> or <code>undefined</code>,
<a href='#rounding-mode'><code>ROUNDING_MODE</code></a> is used.
</p>
<p>
See <a href='#Errors'>Errors</a> for the treatment of other non-integer or out of range
<code>dp</code> or <code>rm</code> values.
</p>
<pre>
x = 3.456
y = new BigNumber(x)
x.toFixed() // '3'
y.toFixed() // '3.456'
y.toFixed(0) // '3'
x.toFixed(2) // '3.46'
y.toFixed(2) // '3.46'
y.toFixed(2, 1) // '3.45' (ROUND_DOWN)
x.toFixed(5) // '3.45600'
y.toFixed(5) // '3.45600'</pre>
<h5 id="toFor">
toFormat<code class='inset'>.toFormat([dp [, rm]]) <i>&rArr; string</i></code>
</h5>
<p>
<code>dp</code>: <i>number</i>: integer, <code>0</code> to <code>1e+9</code> inclusive<br />
<code>rm</code>: <i>number</i>: integer, <code>0</code> to <code>8</code> inclusive
</p>
<p>
<p>
Returns a string representing the value of this BigNumber in normal (fixed-point) notation
rounded to <code>dp</code> decimal places using rounding mode <code>rm</code>, and formatted
according to the properties of the <a href='#format'><code>FORMAT</code></a> object.
</p>
<p>
See the examples below for the properties of the
<a href='#format'><code>FORMAT</code></a> object, their types and their usage.
</p>
<p>
If <code>dp</code> is omitted or is <code>null</code> or <code>undefined</code>, then the
return value is not rounded to a fixed number of decimal places.<br />
If <code>rm</code> is omitted or is <code>null</code> or <code>undefined</code>,
<a href='#rounding-mode'><code>ROUNDING_MODE</code></a> is used.
</p>
<p>
See <a href='#Errors'>Errors</a> for the treatment of other non-integer or out of range
<code>dp</code> or <code>rm</code> values.
</p>
<pre>
format = {
decimalSeparator: '.',
groupSeparator: ',',
groupSize: 3,
secondaryGroupSize: 0,
fractionGroupSeparator: ' ',
fractionGroupSize: 0
}
BigNumber.config({ FORMAT: format })
x = new BigNumber('123456789.123456789')
x.toFormat() // '123,456,789.123456789'
x.toFormat(1) // '123,456,789.1'
// If a reference to the object assigned to FORMAT has been retained,
// the format properties can be changed directly
format.groupSeparator = ' '
format.fractionGroupSize = 5
x.toFormat() // '123 456 789.12345 6789'
BigNumber.config({
FORMAT: {
decimalSeparator: ',',
groupSeparator: '.',
groupSize: 3,
secondaryGroupSize: 2
}
})
x.toFormat(6) // '12.34.56.789,123'</pre>
<h5 id="toFr">
toFraction<code class='inset'>.toFraction([max]) <i>&rArr; [string, string]</i></code>
</h5>
<p>
<code>max</code>: <i>number|string|BigNumber</i>: integer &gt;= <code>1</code> and &lt;
<code>Infinity</code>
</p>
<p>
Returns a string array representing the value of this BigNumber as a simple fraction with an
integer numerator and an integer denominator. The denominator will be a positive non-zero
value less than or equal to <code>max</code>.
</p>
<p>
If a maximum denominator, <code>max</code>, is not specified, or is <code>null</code> or
<code>undefined</code>, the denominator will be the lowest value necessary to represent the
number exactly.
</p>
<p>
See <a href='#Errors'>Errors</a> for the treatment of other non-integer or out of range
<code>max</code> values.
</p>
<pre>
x = new BigNumber(1.75)
x.toFraction() // '7, 4'
pi = new BigNumber('3.14159265358')
pi.toFraction() // '157079632679,50000000000'
pi.toFraction(100000) // '312689, 99532'
pi.toFraction(10000) // '355, 113'
pi.toFraction(100) // '311, 99'
pi.toFraction(10) // '22, 7'
pi.toFraction(1) // '3, 1'</pre>
<h5 id="toJSON">toJSON<code class='inset'>.toJSON() <i>&rArr; string</i></code></h5>
<p>As <code>valueOf</code>.</p>
<pre>
x = new BigNumber('177.7e+457')
y = new BigNumber(235.4325)
z = new BigNumber('0.0098074')
// Serialize an array of three BigNumbers
str = JSON.stringify( [x, y, z] )
// "["1.777e+459","235.4325","0.0098074"]"
// Return an array of three BigNumbers
JSON.parse(str, function (key, val) {
return key === '' ? val : new BigNumber(val)
})</pre>
<h5 id="toN">toNumber<code class='inset'>.toNumber() <i>&rArr; number</i></code></h5>
<p>Returns the value of this BigNumber as a JavaScript number primitive.</p>
<p>
Type coercion with, for example, the unary plus operator will also work, except that a
BigNumber with the value minus zero will be converted to positive zero.
</p>
<pre>
x = new BigNumber(456.789)
x.toNumber() // 456.789
+x // 456.789
y = new BigNumber('45987349857634085409857349856430985')
y.toNumber() // 4.598734985763409e+34
z = new BigNumber(-0)
1 / +z // Infinity
1 / z.toNumber() // -Infinity</pre>
<h5 id="pow">toPower<code class='inset'>.pow(n [, m]) <i>&rArr; BigNumber</i></code></h5>
<p>
<code>n</code>: <i>number</i>: integer,
<code>-9007199254740991</code> to <code>9007199254740991</code> inclusive<br />
<code>m</code>: <i>number|string|BigNumber</i>
</p>
<p>
Returns a BigNumber whose value is the value of this BigNumber raised to the power
<code>n</code>, and optionally modulo a modulus <code>m</code>.
</p>
<p>
If <code>n</code> is negative the result is rounded according to the current
<a href='#decimal-places'><code>DECIMAL_PLACES</code></a> and
<a href='#rounding-mode'><code>ROUNDING_MODE</code></a> configuration.
</p>
<p>
If <code>n</code> is not an integer or is out of range:
</p>
<p class='inset'>
If <code>ERRORS</code> is <code>true</code> a BigNumber Error is thrown,<br />
else if <code>n</code> is greater than <code>9007199254740991</code>, it is interpreted as
<code>Infinity</code>;<br />
else if <code>n</code> is less than <code>-9007199254740991</code>, it is interpreted as
<code>-Infinity</code>;<br />
else if <code>n</code> is otherwise a number, it is truncated to an integer;<br />
else it is interpreted as <code>NaN</code>.
</p>
<p>
As the number of digits of the result of the power operation can grow so large so quickly,
e.g. 123.456<sup>10000</sup> has over <code>50000</code> digits, the number of significant
digits calculated is limited to the value of the
<a href='#pow-precision'><code>POW_PRECISION</code></a> setting (unless a modulus
<code>m</code> is specified).
</p>
<p>
By default <a href='#pow-precision'><code>POW_PRECISION</code></a> is set to <code>0</code>.
This means that an unlimited number of significant digits will be calculated, and that the
method's performance will decrease dramatically for larger exponents.
</p>
<p>
Negative exponents will be calculated to the number of decimal places specified by
<a href='#decimal-places'><code>DECIMAL_PLACES</code></a> (but not to more than
<a href='#pow-precision'><code>POW_PRECISION</code></a> significant digits).
</p>
<p>
If <code>m</code> is specified and the value of <code>m</code>, <code>n</code> and this
BigNumber are positive integers, then a fast modular exponentiation algorithm is used,
otherwise if any of the values is not a positive integer the operation will simply be
performed as <code>x.toPower(n).modulo(m)</code> with a
<a href='#pow-precision'><code>POW_PRECISION</code></a> of <code>0</code>.
</p>
<pre>
Math.pow(0.7, 2) // 0.48999999999999994
x = new BigNumber(0.7)
x.toPower(2) // '0.49'
BigNumber(3).pow(-2) // '0.11111111111111111111'</pre>
<h5 id="toP">
toPrecision<code class='inset'>.toPrecision([sd [, rm]]) <i>&rArr; string</i></code>
</h5>
<p>
<code>sd</code>: <i>number</i>: integer, <code>1</code> to <code>1e+9</code> inclusive<br />
<code>rm</code>: <i>number</i>: integer, <code>0</code> to <code>8</code> inclusive
</p>
<p>
Returns a string representing the value of this BigNumber rounded to <code>sd</code>
significant digits using rounding mode <code>rm</code>.
</p>
<p>
If <code>sd</code> is less than the number of digits necessary to represent the integer part
of the value in normal (fixed-point) notation, then exponential notation is used.
</p>
<p>
If <code>sd</code> is omitted, or is <code>null</code> or <code>undefined</code>, then the
return value is the same as <code>n.toString()</code>.<br />
If <code>rm</code> is omitted or is <code>null</code> or <code>undefined</code>,
<a href='#rounding-mode'><code>ROUNDING_MODE</code></a> is used.
</p>
<p>
See <a href='#Errors'>Errors</a> for the treatment of other non-integer or out of range
<code>sd</code> or <code>rm</code> values.
</p>
<pre>
x = 45.6
y = new BigNumber(x)
x.toPrecision() // '45.6'
y.toPrecision() // '45.6'
x.toPrecision(1) // '5e+1'
y.toPrecision(1) // '5e+1'
y.toPrecision(2, 0) // '4.6e+1' (ROUND_UP)
y.toPrecision(2, 1) // '4.5e+1' (ROUND_DOWN)
x.toPrecision(5) // '45.600'
y.toPrecision(5) // '45.600'</pre>
<h5 id="toS">toString<code class='inset'>.toString([base]) <i>&rArr; string</i></code></h5>
<p><code>base</code>: <i>number</i>: integer, <code>2</code> to <code>64</code> inclusive</p>
<p>
Returns a string representing the value of this BigNumber in the specified base, or base
<code>10</code> if <code>base</code> is omitted or is <code>null</code> or
<code>undefined</code>.
</p>
<p>
For bases above <code>10</code>, values from <code>10</code> to <code>35</code> are
represented by <code>a-z</code> (as with <code>Number.prototype.toString</code>),
<code>36</code> to <code>61</code> by <code>A-Z</code>, and <code>62</code> and
<code>63</code> by <code>$</code> and <code>_</code> respectively.
</p>
<p>
If a base is specified the value is rounded according to the current
<a href='#decimal-places'><code>DECIMAL_PLACES</code></a>
and <a href='#rounding-mode'><code>ROUNDING_MODE</code></a> configuration.
</p>
<p>
If a base is not specified, and this BigNumber has a positive
exponent that is equal to or greater than the positive component of the
current <a href="#exponential-at"><code>EXPONENTIAL_AT</code></a> setting,
or a negative exponent equal to or less than the negative component of the
setting, then exponential notation is returned.
</p>
<p>If <code>base</code> is <code>null</code> or <code>undefined</code> it is ignored.</p>
<p>
See <a href='#Errors'>Errors</a> for the treatment of other non-integer or out of range
<code>base</code> values.
</p>
<pre>
x = new BigNumber(750000)
x.toString() // '750000'
BigNumber.config({ EXPONENTIAL_AT: 5 })
x.toString() // '7.5e+5'
y = new BigNumber(362.875)
y.toString(2) // '101101010.111'
y.toString(9) // '442.77777777777777777778'
y.toString(32) // 'ba.s'
BigNumber.config({ DECIMAL_PLACES: 4 });
z = new BigNumber('1.23456789')
z.toString() // '1.23456789'
z.toString(10) // '1.2346'</pre>
<h5 id="trunc">truncated<code class='inset'>.trunc() <i>&rArr; BigNumber</i></code></h5>
<p>
Returns a BigNumber whose value is the value of this BigNumber truncated to a whole number.
</p>
<pre>
x = new BigNumber(123.456)
x.truncated() // '123'
y = new BigNumber(-12.3)
y.trunc() // '-12'</pre>
<h5 id="valueOf">valueOf<code class='inset'>.valueOf() <i>&rArr; string</i></code></h5>
<p>
As <code>toString</code>, but does not accept a base argument and includes the minus sign
for negative zero.
</p>
<pre>
x = new BigNumber('-0')
x.toString() // '0'
x.valueOf() // '-0'
y = new BigNumber('1.777e+457')
y.valueOf() // '1.777e+457'</pre>
<h4 id="instance-properties">Properties</h4>
<p>The properties of a BigNumber instance:</p>
<table>
<tr>
<th>Property</th>
<th>Description</th>
<th>Type</th>
<th>Value</th>
</tr>
<tr>
<td class='centre' id='coefficient'><b>c</b></td>
<td>coefficient<sup>*</sup></td>
<td><i>number</i><code>[]</code></td>
<td> Array of base <code>1e14</code> numbers</td>
</tr>
<tr>
<td class='centre' id='exponent'><b>e</b></td>
<td>exponent</td>
<td><i>number</i></td>
<td>Integer, <code>-1000000000</code> to <code>1000000000</code> inclusive</td>
</tr>
<tr>
<td class='centre' id='sign'><b>s</b></td>
<td>sign</td>
<td><i>number</i></td>
<td><code>-1</code> or <code>1</code></td>
</tr>
<tr>
<td class='centre' id='isbig'><b>isBigNumber</b></td>
<td>type identifier</td>
<td><i>boolean</i></td>
<td><code>true</code></td>
</tr>
</table>
<p><sup>*</sup>significand</p>
<p>
The value of any of the <code>c</code>, <code>e</code> and <code>s</code> properties may also
be <code>null</code>.
</p>
<p>
From v2.0.0 of this library, the value of the coefficient of a BigNumber is stored in a
normalised base <code>100000000000000</code> floating point format, as opposed to the base
<code>10</code> format used in v1.x.x
</p>
<p>
This change means the properties of a BigNumber are now best considered to be read-only.
Previously it was acceptable to change the exponent of a BigNumber by writing to its exponent
property directly, but this is no longer recommended as the number of digits in the first
element of the coefficient array is dependent on the exponent, so the coefficient would also
need to be altered.
</p>
<p>
Note that, as with JavaScript numbers, the original exponent and fractional trailing zeros are
not necessarily preserved.
</p>
<pre>x = new BigNumber(0.123) // '0.123'
x.toExponential() // '1.23e-1'
x.c // '1,2,3'
x.e // -1
x.s // 1
y = new Number(-123.4567000e+2) // '-12345.67'
y.toExponential() // '-1.234567e+4'
z = new BigNumber('-123.4567000e+2') // '-12345.67'
z.toExponential() // '-1.234567e+4'
z.c // '1,2,3,4,5,6,7'
z.e // 4
z.s // -1</pre>
<p>Checking if a value is a BigNumber instance:</p>
<pre>
x = new BigNumber(3)
x instanceof BigNumber // true
x.isBigNumber // true
BN = BigNumber.another();
y = new BN(3)
y instanceof BigNumber // false
y.isBigNumber // true</pre>
<h4 id="zero-nan-infinity">Zero, NaN and Infinity</h4>
<p>
The table below shows how &plusmn;<code>0</code>, <code>NaN</code> and
&plusmn;<code>Infinity</code> are stored.
</p>
<table>
<tr>
<th> </th>
<th class='centre'>c</th>
<th class='centre'>e</th>
<th class='centre'>s</th>
</tr>
<tr>
<td>&plusmn;0</td>
<td><code>[0]</code></td>
<td><code>0</code></td>
<td><code>&plusmn;1</code></td>
</tr>
<tr>
<td>NaN</td>
<td><code>null</code></td>
<td><code>null</code></td>
<td><code>null</code></td>
</tr>
<tr>
<td>&plusmn;Infinity</td>
<td><code>null</code></td>
<td><code>null</code></td>
<td><code>&plusmn;1</code></td>
</tr>
</table>
<pre>
x = new Number(-0) // 0
1 / x == -Infinity // true
y = new BigNumber(-0) // '0'
y.c // '0' ( [0].toString() )
y.e // 0
y.s // -1</pre>
<h4 id='Errors'>Errors</h4>
<p>
The errors that are thrown are generic <code>Error</code> objects with <code>name</code>
<i>BigNumber Error</i>.
</p>
<p>
The table below shows the errors that may be thrown if <code>ERRORS</code> is
<code>true</code>, and the action taken if <code>ERRORS</code> is <code>false</code>.
</p>
<table class='error-table'>
<tr>
<th>Method(s)</th>
<th>ERRORS: true<br />Throw BigNumber Error</th>
<th>ERRORS: false<br />Action on invalid argument</th>
</tr>
<tr>
<td rowspan=5>
<code>
BigNumber<br />
comparedTo<br />
dividedBy<br />
dividedToIntegerBy<br />
equals<br />
greaterThan<br />
greaterThanOrEqualTo<br />
lessThan<br />
lessThanOrEqualTo<br />
minus<br />
modulo<br />
plus<br />
times
</code></td>
<td>number type has more than<br />15 significant digits</td>
<td>Accept.</td>
</tr>
<tr>
<td>not a base... number</td>
<td>Substitute <code>NaN</code>.</td>
</tr>
<tr>
<td>base not an integer</td>
<td>Truncate to integer.<br />Ignore if not a number.</td>
</tr>
<tr>
<td>base out of range</td>
<td>Ignore.</td>
</tr>
<tr>
<td>not a number<sup>*</sup></td>
<td>Substitute <code>NaN</code>.</td>
</tr>
<tr>
<td><code>another</code></td>
<td>not an object</td>
<td>Ignore.</td>
</tr>
<tr>
<td rowspan=17><code>config</code></td>
<td><code>DECIMAL_PLACES</code> not an integer</td>
<td>Truncate to integer.<br />Ignore if not a number.</td>
</tr>
<tr>
<td><code>DECIMAL_PLACES</code> out of range</td>
<td>Ignore.</td>
</tr>
<tr>
<td><code>ROUNDING_MODE</code> not an integer</td>
<td>Truncate to integer.<br />Ignore if not a number.</td>
</tr>
<tr>
<td><code>ROUNDING_MODE</code> out of range</td>
<td>Ignore.</td>
</tr>
<tr>
<td><code>EXPONENTIAL_AT</code> not an integer<br />or not [integer, integer]</td>
<td>Truncate to integer(s).<br />Ignore if not number(s).</td>
</tr>
<tr>
<td><code>EXPONENTIAL_AT</code> out of range<br />or not [negative, positive]</td>
<td>Ignore.</td>
</tr>
<tr>
<td><code>RANGE</code> not an integer<br />or not [integer, integer]</td>
<td> Truncate to integer(s).<br />Ignore if not number(s).</td>
</tr>
<tr>
<td><code>RANGE</code> cannot be zero</td>
<td>Ignore.</td>
</tr>
<tr>
<td><code>RANGE</code> out of range<br />or not [negative, positive]</td>
<td>Ignore.</td>
</tr>
<tr>
<td><code>ERRORS</code> not a boolean<br />or binary digit</td>
<td>Ignore.</td>
</tr>
<tr>
<td><code>CRYPTO</code> not a boolean<br />or binary digit</td>
<td>Ignore.</td>
</tr>
<tr>
<td><code>CRYPTO</code> crypto unavailable</td>
<td>Ignore.</td>
</tr>
<tr>
<td><code>MODULO_MODE</code> not an integer</td>
<td>Truncate to integer.<br />Ignore if not a number.</td>
</tr>
<tr>
<td><code>MODULO_MODE</code> out of range</td>
<td>Ignore.</td>
</tr>
<tr>
<td><code>POW_PRECISION</code> not an integer</td>
<td>Truncate to integer.<br />Ignore if not a number.</td>
</tr>
<tr>
<td><code>POW_PRECISION</code> out of range</td>
<td>Ignore.</td>
</tr>
<tr>
<td><code>FORMAT</code> not an object</td>
<td>Ignore.</td>
</tr>
<tr>
<td><code>precision</code></td>
<td>argument not a boolean<br />or binary digit</td>
<td>Ignore.</td>
</tr>
<tr>
<td rowspan=4><code>round</code></td>
<td>decimal places not an integer</td>
<td>Truncate to integer.<br />Ignore if not a number.</td>
</tr>
<tr>
<td>decimal places out of range</td>
<td>Ignore.</td>
</tr>
<tr>
<td>rounding mode not an integer</td>
<td>Truncate to integer.<br />Ignore if not a number.</td>
</tr>
<tr>
<td>rounding mode out of range</td>
<td>Ignore.</td>
</tr>
<tr>
<td rowspan=2><code>shift</code></td>
<td>argument not an integer</td>
<td>Truncate to integer.<br />Ignore if not a number.</td>
</tr>
<tr>
<td>argument out of range</td>
<td>Substitute &plusmn;<code>Infinity</code>.
</tr>
<tr>
<td rowspan=4>
<code>toExponential</code><br />
<code>toFixed</code><br />
<code>toFormat</code>
</td>
<td>decimal places not an integer</td>
<td>Truncate to integer.<br />Ignore if not a number.</td>
</tr>
<tr>
<td>decimal places out of range</td>
<td>Ignore.</td>
</tr>
<tr>
<td>rounding mode not an integer</td>
<td>Truncate to integer.<br />Ignore if not a number.</td>
</tr>
<tr>
<td>rounding mode out of range</td>
<td>Ignore.</td>
</tr>
<tr>
<td rowspan=2><code>toFraction</code></td>
<td>max denominator not an integer</td>
<td>Truncate to integer.<br />Ignore if not a number.</td>
</tr>
<tr>
<td>max denominator out of range</td>
<td>Ignore.</td>
</tr>
<tr>
<td rowspan=4>
<code>toDigits</code><br />
<code>toPrecision</code>
</td>
<td>precision not an integer</td>
<td>Truncate to integer.<br />Ignore if not a number.</td>
</tr>
<tr>
<td>precision out of range</td>
<td>Ignore.</td>
</tr>
<tr>
<td>rounding mode not an integer</td>
<td>Truncate to integer.<br />Ignore if not a number.</td>
</tr>
<tr>
<td>rounding mode out of range</td>
<td>Ignore.</td>
</tr>
<tr>
<td rowspan=2><code>toPower</code></td>
<td>exponent not an integer</td>
<td>Truncate to integer.<br />Substitute <code>NaN</code> if not a number.</td>
</tr>
<tr>
<td>exponent out of range</td>
<td>Substitute &plusmn;<code>Infinity</code>.
</td>
</tr>
<tr>
<td rowspan=2><code>toString</code></td>
<td>base not an integer</td>
<td>Truncate to integer.<br />Ignore if not a number.</td>
</tr>
<tr>
<td>base out of range</td>
<td>Ignore.</td>
</tr>
</table>
<p><sup>*</sup>No error is thrown if the value is <code>NaN</code> or 'NaN'.</p>
<p>
The message of a <i>BigNumber Error</i> will also contain the name of the method from which
the error originated.
</p>
<p>To determine if an exception is a <i>BigNumber Error</i>:</p>
<pre>
try {
// ...
} catch (e) {
if ( e instanceof Error && e.name == 'BigNumber Error' ) {
// ...
}
}</pre>
<h4 id='faq'>FAQ</h4>
<h6>Why are trailing fractional zeros removed from BigNumbers?</h6>
<p>
Some arbitrary-precision libraries retain trailing fractional zeros as they can indicate the
precision of a value. This can be useful but the results of arithmetic operations can be
misleading.
</p>
<pre>
x = new BigDecimal("1.0")
y = new BigDecimal("1.1000")
z = x.add(y) // 2.1000
x = new BigDecimal("1.20")
y = new BigDecimal("3.45000")
z = x.multiply(y) // 4.1400000</pre>
<p>
To specify the precision of a value is to specify that the value lies
within a certain range.
</p>
<p>
In the first example, <code>x</code> has a value of <code>1.0</code>. The trailing zero shows
the precision of the value, implying that it is in the range <code>0.95</code> to
<code>1.05</code>. Similarly, the precision indicated by the trailing zeros of <code>y</code>
indicates that the value is in the range <code>1.09995</code> to <code>1.10005</code>.
</p>
<p>
If we add the two lowest values in the ranges we have, <code>0.95 + 1.09995 = 2.04995</code>,
and if we add the two highest values we have, <code>1.05 + 1.10005 = 2.15005</code>, so the
range of the result of the addition implied by the precision of its operands is
<code>2.04995</code> to <code>2.15005</code>.
</p>
<p>
The result given by BigDecimal of <code>2.1000</code> however, indicates that the value is in
the range <code>2.09995</code> to <code>2.10005</code> and therefore the precision implied by
its trailing zeros may be misleading.
</p>
<p>
In the second example, the true range is <code>4.122744</code> to <code>4.157256</code> yet
the BigDecimal answer of <code>4.1400000</code> indicates a range of <code>4.13999995</code>
to <code>4.14000005</code>. Again, the precision implied by the trailing zeros may be
misleading.
</p>
<p>
This library, like binary floating point and most calculators, does not retain trailing
fractional zeros. Instead, the <code>toExponential</code>, <code>toFixed</code> and
<code>toPrecision</code> methods enable trailing zeros to be added if and when required.<br />
</p>
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... ...
{
"name": "bignumber.js",
"description": "A library for arbitrary-precision decimal and non-decimal arithmetic",
"version": "4.0.2",
"keywords": [
"arbitrary",
"precision",
"arithmetic",
"big",
"number",
"decimal",
"float",
"biginteger",
"bigdecimal",
"bignumber",
"bigint",
"bignum"
],
"repository": {
"type": "git",
"url": "https://github.com/MikeMcl/bignumber.js.git"
},
"main": "bignumber.js",
"author": {
"name": "Michael Mclaughlin",
"email": "M8ch88l@gmail.com"
},
"engines": {
"node": "*"
},
"license": "MIT",
"scripts": {
"test": "node ./test/every-test.js",
"build": "uglifyjs bignumber.js --source-map bignumber.js.map -c -m -o bignumber.min.js --preamble \"/* bignumber.js v4.0.2 https://github.com/MikeMcl/bignumber.js/LICENCE */\""
},
"_from": "bignumber.js@4.0.2",
"_resolved": "http://registry.npm.taobao.org/bignumber.js/download/bignumber.js-4.0.2.tgz"
}
\ No newline at end of file
... ...
Thu Aug 17 2017 17:03:39 GMT+0800 (CST)
\ No newline at end of file
... ...
The MIT License (MIT)
Copyright (c) 2013-2017 Petka Antonov
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
... ...
<a href="http://promisesaplus.com/">
<img src="http://promisesaplus.com/assets/logo-small.png" alt="Promises/A+ logo"
title="Promises/A+ 1.1 compliant" align="right" />
</a>
[![Build Status](https://travis-ci.org/petkaantonov/bluebird.svg?branch=master)](https://travis-ci.org/petkaantonov/bluebird)
[![coverage-98%](http://img.shields.io/badge/coverage-98%-brightgreen.svg?style=flat)](http://petkaantonov.github.io/bluebird/coverage/debug/index.html)
**Got a question?** Join us on [stackoverflow](http://stackoverflow.com/questions/tagged/bluebird), the [mailing list](https://groups.google.com/forum/#!forum/bluebird-js) or chat on [IRC](https://webchat.freenode.net/?channels=#promises)
# Introduction
Bluebird is a fully featured promise library with focus on innovative features and performance
See the [**bluebird website**](http://bluebirdjs.com/docs/getting-started.html) for further documentation, references and instructions. See the [**API reference**](http://bluebirdjs.com/docs/api-reference.html) here.
For bluebird 2.x documentation and files, see the [2.x tree](https://github.com/petkaantonov/bluebird/tree/2.x).
# Questions and issues
The [github issue tracker](https://github.com/petkaantonov/bluebird/issues) is **_only_** for bug reports and feature requests. Anything else, such as questions for help in using the library, should be posted in [StackOverflow](http://stackoverflow.com/questions/tagged/bluebird) under tags `promise` and `bluebird`.
## Thanks
Thanks to BrowserStack for providing us with a free account which lets us support old browsers like IE8.
# License
The MIT License (MIT)
Copyright (c) 2013-2017 Petka Antonov
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
... ...
[http://bluebirdjs.com/docs/changelog.html](http://bluebirdjs.com/docs/changelog.html)
... ...
/* @preserve
* The MIT License (MIT)
*
* Copyright (c) 2013-2017 Petka Antonov
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
/**
* bluebird build version 3.5.0
* Features enabled: core
* Features disabled: race, call_get, generators, map, nodeify, promisify, props, reduce, settle, some, using, timers, filter, any, each
*/
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t=this;this.drainQueues=function(){t._drainQueues()},this._schedule=l}function i(t,e,n){this._lateQueue.push(t,e,n),this._queueTick()}function o(t,e,n){this._normalQueue.push(t,e,n),this._queueTick()}function a(t){this._normalQueue._pushOne(t),this._queueTick()}var s;try{throw new Error}catch(c){s=c}var l=t("./schedule"),u=t("./queue"),p=t("./util");r.prototype.setScheduler=function(t){var e=this._schedule;return this._schedule=t,this._customScheduler=!0,e},r.prototype.hasCustomScheduler=function(){return this._customScheduler},r.prototype.enableTrampoline=function(){this._trampolineEnabled=!0},r.prototype.disableTrampolineIfNecessary=function(){p.hasDevTools&&(this._trampolineEnabled=!1)},r.prototype.haveItemsQueued=function(){return this._isTickUsed||this._haveDrainedQueues},r.prototype.fatalError=function(t,e){e?(process.stderr.write("Fatal "+(t instanceof Error?t.stack:t)+"\n"),process.exit(2)):this.throwLater(t)},r.prototype.throwLater=function(t,e){if(1===arguments.length&&(e=t,t=function(){throw e}),"undefined"!=typeof setTimeout)setTimeout(function(){t(e)},0);else try{this._schedule(function(){t(e)})}catch(n){throw new Error("No async scheduler available\n\n See http://goo.gl/MqrFmX\n")}},p.hasDevTools?(r.prototype.invokeLater=function(t,e,n){this._trampolineEnabled?i.call(this,t,e,n):this._schedule(function(){setTimeout(function(){t.call(e,n)},100)})},r.prototype.invoke=function(t,e,n){this._trampolineEnabled?o.call(this,t,e,n):this._schedule(function(){t.call(e,n)})},r.prototype.settlePromises=function(t){this._trampolineEnabled?a.call(this,t):this._schedule(function(){t._settlePromises()})}):(r.prototype.invokeLater=i,r.prototype.invoke=o,r.prototype.settlePromises=a),r.prototype._drainQueue=function(t){for(;t.length()>0;){var e=t.shift();if("function"==typeof e){var n=t.shift(),r=t.shift();e.call(n,r)}else e._settlePromises()}},r.prototype._drainQueues=function(){this._drainQueue(this._normalQueue),this._reset(),this._haveDrainedQueues=!0,this._drainQueue(this._lateQueue)},r.prototype._queueTick=function(){this._isTickUsed||(this._isTickUsed=!0,this._schedule(this.drainQueues))},r.prototype._reset=function(){this._isTickUsed=!1},e.exports=r,e.exports.firstLineError=s},{"./queue":17,"./schedule":18,"./util":21}],2:[function(t,e,n){"use strict";e.exports=function(t,e,n,r){var i=!1,o=function(t,e){this._reject(e)},a=function(t,e){e.promiseRejectionQueued=!0,e.bindingPromise._then(o,o,null,this,t)},s=function(t,e){0===(50397184&this._bitField)&&this._resolveCallback(e.target)},c=function(t,e){e.promiseRejectionQueued||this._reject(t)};t.prototype.bind=function(o){i||(i=!0,t.prototype._propagateFrom=r.propagateFromFunction(),t.prototype._boundValue=r.boundValueFunction());var l=n(o),u=new t(e);u._propagateFrom(this,1);var p=this._target();if(u._setBoundTo(l),l instanceof t){var f={promiseRejectionQueued:!1,promise:u,target:p,bindingPromise:l};p._then(e,a,void 0,u,f),l._then(s,c,void 0,u,f),u._setOnCancel(l)}else u._resolveCallback(p);return u},t.prototype._setBoundTo=function(t){void 0!==t?(this._bitField=2097152|this._bitField,this._boundTo=t):this._bitField=-2097153&this._bitField},t.prototype._isBound=function(){return 2097152===(2097152&this._bitField)},t.bind=function(e,n){return t.resolve(n).bind(e)}}},{}],3:[function(t,e,n){"use strict";function r(){try{Promise===o&&(Promise=i)}catch(t){}return o}var i;"undefined"!=typeof Promise&&(i=Promise);var o=t("./promise")();o.noConflict=r,e.exports=o},{"./promise":15}],4:[function(t,e,n){"use strict";e.exports=function(e,n,r,i){var o=t("./util"),a=o.tryCatch,s=o.errorObj,c=e._async;e.prototype["break"]=e.prototype.cancel=function(){if(!i.cancellation())return this._warn("cancellation is disabled");for(var t=this,e=t;t._isCancellable();){if(!t._cancelBy(e)){e._isFollowing()?e._followee().cancel():e._cancelBranched();break}var n=t._cancellationParent;if(null==n||!n._isCancellable()){t._isFollowing()?t._followee().cancel():t._cancelBranched();break}t._isFollowing()&&t._followee().cancel(),t._setWillBeCancelled(),e=t,t=n}},e.prototype._branchHasCancelled=function(){this._branchesRemainingToCancel--},e.prototype._enoughBranchesHaveCancelled=function(){return void 0===this._branchesRemainingToCancel||this._branchesRemainingToCancel<=0},e.prototype._cancelBy=function(t){return t===this?(this._branchesRemainingToCancel=0,this._invokeOnCancel(),!0):(this._branchHasCancelled(),this._enoughBranchesHaveCancelled()?(this._invokeOnCancel(),!0):!1)},e.prototype._cancelBranched=function(){this._enoughBranchesHaveCancelled()&&this._cancel()},e.prototype._cancel=function(){this._isCancellable()&&(this._setCancelled(),c.invoke(this._cancelPromises,this,void 0))},e.prototype._cancelPromises=function(){this._length()>0&&this._settlePromises()},e.prototype._unsetOnCancel=function(){this._onCancelField=void 0},e.prototype._isCancellable=function(){return this.isPending()&&!this._isCancelled()},e.prototype.isCancellable=function(){return this.isPending()&&!this.isCancelled()},e.prototype._doInvokeOnCancel=function(t,e){if(o.isArray(t))for(var n=0;n<t.length;++n)this._doInvokeOnCancel(t[n],e);else if(void 0!==t)if("function"==typeof t){if(!e){var r=a(t).call(this._boundValue());r===s&&(this._attachExtraTrace(r.e),c.throwLater(r.e))}}else t._resultCancelled(this)},e.prototype._invokeOnCancel=function(){var t=this._onCancel();this._unsetOnCancel(),c.invoke(this._doInvokeOnCancel,this,t)},e.prototype._invokeInternalOnCancel=function(){this._isCancellable()&&(this._doInvokeOnCancel(this._onCancel(),!0),this._unsetOnCancel())},e.prototype._resultCancelled=function(){this.cancel()}}},{"./util":21}],5:[function(t,e,n){"use 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a=r._popContext();i=r._bitField,0===(65536&i)&&(o===w?r._reject(n):o===S?r._rejectCallback(o.e,!1):(F.checkForgottenReturns(o,a,"",r,this),r._resolveCallback(o)))}},i.prototype._target=function(){for(var t=this;t._isFollowing();)t=t._followee();return t},i.prototype._followee=function(){return this._rejectionHandler0},i.prototype._setFollowee=function(t){this._rejectionHandler0=t},i.prototype._settlePromise=function(t,e,r,o){var a=t instanceof i,s=this._bitField,c=0!==(134217728&s);0!==(65536&s)?(a&&t._invokeInternalOnCancel(),r instanceof T&&r.isFinallyHandler()?(r.cancelPromise=t,x(e).call(r,o)===S&&t._reject(S.e)):e===u?t._fulfill(u.call(r)):r instanceof n?r._promiseCancelled(t):a||t instanceof k?t._cancel():r.cancel()):"function"==typeof e?a?(c&&t._setAsyncGuaranteed(),this._settlePromiseFromHandler(e,r,o,t)):e.call(r,o,t):r instanceof 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this._attachExtraTrace(n),this._reject(n)}this._setFulfilled(),this._rejectionHandler0=t,(65535&e)>0&&(0!==(134217728&e)?this._settlePromises():v.settlePromises(this))}},i.prototype._reject=function(t){var e=this._bitField;if(!((117506048&e)>>>16))return this._setRejected(),this._fulfillmentHandler0=t,this._isFinal()?v.fatalError(t,h.isNode):void((65535&e)>0?v.settlePromises(this):this._ensurePossibleRejectionHandled())},i.prototype._fulfillPromises=function(t,e){for(var n=1;t>n;n++){var r=this._fulfillmentHandlerAt(n),i=this._promiseAt(n),o=this._receiverAt(n);this._clearCallbackDataAtIndex(n),this._settlePromise(i,r,o,e)}},i.prototype._rejectPromises=function(t,e){for(var n=1;t>n;n++){var r=this._rejectionHandlerAt(n),i=this._promiseAt(n),o=this._receiverAt(n);this._clearCallbackDataAtIndex(n),this._settlePromise(i,r,o,e)}},i.prototype._settlePromises=function(){var t=this._bitField,e=65535&t;if(e>0){if(0!==(16842752&t)){var n=this._fulfillmentHandler0;this._settlePromise0(this._rejectionHandler0,n,t),this._rejectPromises(e,n)}else{var r=this._rejectionHandler0;this._settlePromise0(this._fulfillmentHandler0,r,t),this._fulfillPromises(e,r)}this._setLength(0)}this._clearCancellationData()},i.prototype._settledValue=function(){var t=this._bitField;return 0!==(33554432&t)?this._rejectionHandler0:0!==(16777216&t)?this._fulfillmentHandler0:void 0},i.defer=i.pending=function(){F.deprecated("Promise.defer","new Promise");var t=new i(b);return{promise:t,resolve:o,reject:a}},h.notEnumerableProp(i,"_makeSelfResolutionError",l),t("./method")(i,b,E,p,F),t("./bind")(i,b,E,F),t("./cancel")(i,k,p,F),t("./direct_resolve")(i),t("./synchronous_inspection")(i),t("./join")(i,k,E,b,v,c),i.Promise=i,i.version="3.5.0",h.toFastProperties(i),h.toFastProperties(i.prototype),s({a:1}),s({b:2}),s({c:3}),s(1),s(function(){}),s(void 0),s(!1),s(new i(b)),F.setBounds(d.firstLineError,h.lastLineError),i}},{"./async":1,"./bind":2,"./cancel":4,"./catch_filter":5,"./context":6,"./debuggability":7,"./direct_resolve":8,"./errors":9,"./es5":10,"./finally":11,"./join":12,"./method":13,"./nodeback":14,"./promise_array":16,"./synchronous_inspection":19,"./thenables":20,"./util":21}],16:[function(t,e,n){"use strict";e.exports=function(e,n,r,i,o){function a(t){switch(t){case-2:return[];case-3:return{};case-6:return new Map}}function s(t){var r=this._promise=new e(n);t instanceof e&&r._propagateFrom(t,3),r._setOnCancel(this),this._values=t,this._length=0,this._totalResolved=0,this._init(void 0,-2)}var c=t("./util");c.isArray;return c.inherits(s,o),s.prototype.length=function(){return this._length},s.prototype.promise=function(){return this._promise},s.prototype._init=function l(t,n){var o=r(this._values,this._promise);if(o instanceof e){o=o._target();var s=o._bitField;if(this._values=o,0===(50397184&s))return this._promise._setAsyncGuaranteed(),o._then(l,this._reject,void 0,this,n);if(0===(33554432&s))return 0!==(16777216&s)?this._reject(o._reason()):this._cancel();o=o._value()}if(o=c.asArray(o),null===o){var u=i("expecting an array or an iterable object but got "+c.classString(o)).reason();return void this._promise._rejectCallback(u,!1)}return 0===o.length?void(-5===n?this._resolveEmptyArray():this._resolve(a(n))):void this._iterate(o)},s.prototype._iterate=function(t){var n=this.getActualLength(t.length);this._length=n,this._values=this.shouldCopyValues()?new Array(n):this._values;for(var i=this._promise,o=!1,a=null,s=0;n>s;++s){var c=r(t[s],i);c instanceof e?(c=c._target(),a=c._bitField):a=null,o?null!==a&&c.suppressUnhandledRejections():null!==a?0===(50397184&a)?(c._proxy(this,s),this._values[s]=c):o=0!==(33554432&a)?this._promiseFulfilled(c._value(),s):0!==(16777216&a)?this._promiseRejected(c._reason(),s):this._promiseCancelled(s):o=this._promiseFulfilled(c,s)}o||i._setAsyncGuaranteed()},s.prototype._isResolved=function(){return null===this._values},s.prototype._resolve=function(t){this._values=null,this._promise._fulfill(t)},s.prototype._cancel=function(){!this._isResolved()&&this._promise._isCancellable()&&(this._values=null,this._promise._cancel())},s.prototype._reject=function(t){this._values=null,this._promise._rejectCallback(t,!1)},s.prototype._promiseFulfilled=function(t,e){this._values[e]=t;var n=++this._totalResolved;return n>=this._length?(this._resolve(this._values),!0):!1},s.prototype._promiseCancelled=function(){return this._cancel(),!0},s.prototype._promiseRejected=function(t){return this._totalResolved++,this._reject(t),!0},s.prototype._resultCancelled=function(){if(!this._isResolved()){var t=this._values;if(this._cancel(),t instanceof e)t.cancel();else for(var n=0;n<t.length;++n)t[n]instanceof e&&t[n].cancel()}},s.prototype.shouldCopyValues=function(){return!0},s.prototype.getActualLength=function(t){return t},s}},{"./util":21}],17:[function(t,e,n){"use strict";function r(t,e,n,r,i){for(var o=0;i>o;++o)n[o+r]=t[o+e],t[o+e]=void 0}function i(t){this._capacity=t,this._length=0,this._front=0}i.prototype._willBeOverCapacity=function(t){return this._capacity<t},i.prototype._pushOne=function(t){var e=this.length();this._checkCapacity(e+1);var n=this._front+e&this._capacity-1;this[n]=t,this._length=e+1},i.prototype.push=function(t,e,n){var r=this.length()+3;if(this._willBeOverCapacity(r))return this._pushOne(t),this._pushOne(e),void this._pushOne(n);var i=this._front+r-3;this._checkCapacity(r);var o=this._capacity-1;this[i+0&o]=t,this[i+1&o]=e,this[i+2&o]=n,this._length=r},i.prototype.shift=function(){var t=this._front,e=this[t];return this[t]=void 0,this._front=t+1&this._capacity-1,this._length--,e},i.prototype.length=function(){return this._length},i.prototype._checkCapacity=function(t){this._capacity<t&&this._resizeTo(this._capacity<<1)},i.prototype._resizeTo=function(t){var e=this._capacity;this._capacity=t;var n=this._front,i=this._length,o=n+i&e-1;r(this,0,this,e,o)},e.exports=i},{}],18:[function(t,e,n){"use strict";var r,i=t("./util"),o=function(){throw new Error("No async scheduler available\n\n See http://goo.gl/MqrFmX\n")},a=i.getNativePromise();if(i.isNode&&"undefined"==typeof MutationObserver){var s=global.setImmediate,c=process.nextTick;r=i.isRecentNode?function(t){s.call(global,t)}:function(t){c.call(process,t)}}else if("function"==typeof a&&"function"==typeof a.resolve){var l=a.resolve();r=function(t){l.then(t)}}else r="undefined"==typeof 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... ...
/* @preserve
* The MIT License (MIT)
*
* Copyright (c) 2013-2017 Petka Antonov
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
/**
* bluebird build version 3.5.0
* Features enabled: core, race, call_get, generators, map, nodeify, promisify, props, reduce, settle, some, using, timers, filter, any, each
*/
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w=e.all(b).then(function(t){for(var e=0;e<t.length;++e){var n=t[e];if(n.isRejected())return y.e=n.error(),y;if(!n.isFulfilled())return void w.cancel();t[e]=n.value()}C._pushContext(),i=m(i);var r=a?i.apply(void 0,t):i(t),o=C._popContext();return s.checkForgottenReturns(r,o,"Promise.using",C),r}),C=w.lastly(function(){var t=new e.PromiseInspection(w);return l(c,t)});return c.promise=C,C._setOnCancel(c),C},e.prototype._setDisposable=function(t){this._bitField=131072|this._bitField,this._disposer=t},e.prototype._isDisposable=function(){return(131072&this._bitField)>0},e.prototype._getDisposer=function(){return this._disposer},e.prototype._unsetDisposable=function(){this._bitField=-131073&this._bitField,this._disposer=void 0},e.prototype.disposer=function(t){if("function"==typeof t)return new p(t,this,i());throw new d}}},{"./errors":12,"./util":36}],36:[function(t,e,n){"use strict";function r(){try{var t=P;return P=null,t.apply(this,arguments)}catch(e){return T.e=e,T}}function i(t){return 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Array(t),i=0;t>i;++i)r[i]=e+i+n;return r}function v(t){try{return t+""}catch(e){return"[no string representation]"}}function y(t){return null!==t&&"object"==typeof t&&"string"==typeof t.message&&"string"==typeof t.name}function m(t){try{u(t,"isOperational",!0)}catch(e){}}function g(t){return null==t?!1:t instanceof Error.__BluebirdErrorTypes__.OperationalError||t.isOperational===!0}function b(t){return y(t)&&F.propertyIsWritable(t,"stack")}function w(t){return{}.toString.call(t)}function C(t,e,n){for(var r=F.names(t),i=0;i<r.length;++i){var o=r[i];if(n(o))try{F.defineProperty(e,o,F.getDescriptor(t,o))}catch(s){}}}function j(t){return N?process.env[t]:void 0}function E(){if("function"==typeof Promise)try{var t=new Promise(function(){});if("[object Promise]"==={}.toString.call(t))return Promise}catch(e){}}function k(t,e){return t.bind(e)}var F=t("./es5"),x="undefined"==typeof navigator,T={e:{}},P,R="undefined"!=typeof self?self:"undefined"!=typeof window?window:"undefined"!=typeof global?global:void 0!==this?this:null,S=function(t,e){function n(){this.constructor=t,this.constructor$=e;for(var n in e.prototype)r.call(e.prototype,n)&&"$"!==n.charAt(n.length-1)&&(this[n+"$"]=e.prototype[n])}var r={}.hasOwnProperty;return n.prototype=e.prototype,t.prototype=new n,t.prototype},O=function(){var t=[Array.prototype,Object.prototype,Function.prototype],e=function(e){for(var n=0;n<t.length;++n)if(t[n]===e)return!0;return!1};if(F.isES5){var n=Object.getOwnPropertyNames;return function(t){for(var r=[],i=Object.create(null);null!=t&&!e(t);){var o;try{o=n(t)}catch(s){return r}for(var a=0;a<o.length;++a){var c=o[a];if(!i[c]){i[c]=!0;var l=Object.getOwnPropertyDescriptor(t,c);null!=l&&null==l.get&&null==l.set&&r.push(c)}}t=F.getPrototypeOf(t)}return r}}var r={}.hasOwnProperty;return function(n){if(e(n))return[];var i=[];t:for(var o in n)if(r.call(n,o))i.push(o);else{for(var s=0;s<t.length;++s)if(r.call(t[s],o))continue t;i.push(o)}return i}}(),A=/this\s*\.\s*\S+\s*=/,D=/^[a-z$_][a-z$_0-9]*$/i,V=function(){return"stack"in new Error?function(t){return b(t)?t:new Error(v(t))}:function(t){if(b(t))return t;try{throw new Error(v(t))}catch(e){return e}}}(),I=function(t){return F.isArray(t)?t:null};if("undefined"!=typeof Symbol&&Symbol.iterator){var L="function"==typeof Array.from?function(t){return Array.from(t)}:function(t){for(var e,n=[],r=t[Symbol.iterator]();!(e=r.next()).done;)n.push(e.value);return n};I=function(t){return F.isArray(t)?t:null!=t&&"function"==typeof t[Symbol.iterator]?L(t):null}}var H="undefined"!=typeof process&&"[object process]"===w(process).toLowerCase(),N="undefined"!=typeof process&&"undefined"!=typeof process.env,B={isClass:h,isIdentifier:_,inheritedDataKeys:O,getDataPropertyOrDefault:l,thrower:p,isArray:F.isArray,asArray:I,notEnumerableProp:u,isPrimitive:o,isObject:s,isError:y,canEvaluate:x,errorObj:T,tryCatch:i,inherits:S,withAppended:c,maybeWrapAsError:a,toFastProperties:f,filledRange:d,toString:v,canAttachTrace:b,ensureErrorObject:V,originatesFromRejection:g,markAsOriginatingFromRejection:m,classString:w,copyDescriptors:C,hasDevTools:"undefined"!=typeof chrome&&chrome&&"function"==typeof chrome.loadTimes,isNode:H,hasEnvVariables:N,env:j,global:R,getNativePromise:E,domainBind:k};B.isRecentNode=B.isNode&&function(){var t=process.versions.node.split(".").map(Number);return 0===t[0]&&t[1]>10||t[0]>0}(),B.isNode&&B.toFastProperties(process);try{throw new Error}catch(U){B.lastLineError=U}e.exports=B},{"./es5":13}]},{},[4])(4)}),"undefined"!=typeof window&&null!==window?window.P=window.Promise:"undefined"!=typeof self&&null!==self&&(self.P=self.Promise);
\ No newline at end of file
... ...
"use strict";
module.exports = function(Promise) {
var SomePromiseArray = Promise._SomePromiseArray;
function any(promises) {
var ret = new SomePromiseArray(promises);
var promise = ret.promise();
ret.setHowMany(1);
ret.setUnwrap();
ret.init();
return promise;
}
Promise.any = function (promises) {
return any(promises);
};
Promise.prototype.any = function () {
return any(this);
};
};
... ...
"use strict";
module.exports = (function(){
var AssertionError = (function() {
function AssertionError(a) {
this.constructor$(a);
this.message = a;
this.name = "AssertionError";
}
AssertionError.prototype = new Error();
AssertionError.prototype.constructor = AssertionError;
AssertionError.prototype.constructor$ = Error;
return AssertionError;
})();
function getParams(args) {
var params = [];
for (var i = 0; i < args.length; ++i) params.push("arg" + i);
return params;
}
function nativeAssert(callName, args, expect) {
try {
var params = getParams(args);
var constructorArgs = params;
constructorArgs.push("return " +
callName + "("+ params.join(",") + ");");
var fn = Function.apply(null, constructorArgs);
return fn.apply(null, args);
} catch (e) {
if (!(e instanceof SyntaxError)) {
throw e;
} else {
return expect;
}
}
}
return function assert(boolExpr, message) {
if (boolExpr === true) return;
if (typeof boolExpr === "string" &&
boolExpr.charAt(0) === "%") {
var nativeCallName = boolExpr;
var $_len = arguments.length;var args = new Array(Math.max($_len - 2, 0)); for(var $_i = 2; $_i < $_len; ++$_i) {args[$_i - 2] = arguments[$_i];};
if (nativeAssert(nativeCallName, args, message) === message) return;
message = (nativeCallName + " !== " + message);
}
var ret = new AssertionError(message);
if (Error.captureStackTrace) {
Error.captureStackTrace(ret, assert);
}
throw ret;
};
})();
... ...
"use strict";
var firstLineError;
try {throw new Error(); } catch (e) {firstLineError = e;}
var schedule = require("./schedule");
var Queue = require("./queue");
var util = require("./util");
function Async() {
this._customScheduler = false;
this._isTickUsed = false;
this._lateQueue = new Queue(16);
this._normalQueue = new Queue(16);
this._haveDrainedQueues = false;
this._trampolineEnabled = true;
var self = this;
this.drainQueues = function () {
self._drainQueues();
};
this._schedule = schedule;
}
Async.prototype.setScheduler = function(fn) {
var prev = this._schedule;
this._schedule = fn;
this._customScheduler = true;
return prev;
};
Async.prototype.hasCustomScheduler = function() {
return this._customScheduler;
};
Async.prototype.enableTrampoline = function() {
this._trampolineEnabled = true;
};
Async.prototype.disableTrampolineIfNecessary = function() {
if (util.hasDevTools) {
this._trampolineEnabled = false;
}
};
Async.prototype.haveItemsQueued = function () {
return this._isTickUsed || this._haveDrainedQueues;
};
Async.prototype.fatalError = function(e, isNode) {
if (isNode) {
process.stderr.write("Fatal " + (e instanceof Error ? e.stack : e) +
"\n");
process.exit(2);
} else {
this.throwLater(e);
}
};
Async.prototype.throwLater = function(fn, arg) {
if (arguments.length === 1) {
arg = fn;
fn = function () { throw arg; };
}
if (typeof setTimeout !== "undefined") {
setTimeout(function() {
fn(arg);
}, 0);
} else try {
this._schedule(function() {
fn(arg);
});
} catch (e) {
throw new Error("No async scheduler available\u000a\u000a See http://goo.gl/MqrFmX\u000a");
}
};
function AsyncInvokeLater(fn, receiver, arg) {
this._lateQueue.push(fn, receiver, arg);
this._queueTick();
}
function AsyncInvoke(fn, receiver, arg) {
this._normalQueue.push(fn, receiver, arg);
this._queueTick();
}
function AsyncSettlePromises(promise) {
this._normalQueue._pushOne(promise);
this._queueTick();
}
if (!util.hasDevTools) {
Async.prototype.invokeLater = AsyncInvokeLater;
Async.prototype.invoke = AsyncInvoke;
Async.prototype.settlePromises = AsyncSettlePromises;
} else {
Async.prototype.invokeLater = function (fn, receiver, arg) {
if (this._trampolineEnabled) {
AsyncInvokeLater.call(this, fn, receiver, arg);
} else {
this._schedule(function() {
setTimeout(function() {
fn.call(receiver, arg);
}, 100);
});
}
};
Async.prototype.invoke = function (fn, receiver, arg) {
if (this._trampolineEnabled) {
AsyncInvoke.call(this, fn, receiver, arg);
} else {
this._schedule(function() {
fn.call(receiver, arg);
});
}
};
Async.prototype.settlePromises = function(promise) {
if (this._trampolineEnabled) {
AsyncSettlePromises.call(this, promise);
} else {
this._schedule(function() {
promise._settlePromises();
});
}
};
}
Async.prototype._drainQueue = function(queue) {
while (queue.length() > 0) {
var fn = queue.shift();
if (typeof fn !== "function") {
fn._settlePromises();
continue;
}
var receiver = queue.shift();
var arg = queue.shift();
fn.call(receiver, arg);
}
};
Async.prototype._drainQueues = function () {
this._drainQueue(this._normalQueue);
this._reset();
this._haveDrainedQueues = true;
this._drainQueue(this._lateQueue);
};
Async.prototype._queueTick = function () {
if (!this._isTickUsed) {
this._isTickUsed = true;
this._schedule(this.drainQueues);
}
};
Async.prototype._reset = function () {
this._isTickUsed = false;
};
module.exports = Async;
module.exports.firstLineError = firstLineError;
... ...
"use strict";
module.exports = function(Promise, INTERNAL, tryConvertToPromise, debug) {
var calledBind = false;
var rejectThis = function(_, e) {
this._reject(e);
};
var targetRejected = function(e, context) {
context.promiseRejectionQueued = true;
context.bindingPromise._then(rejectThis, rejectThis, null, this, e);
};
var bindingResolved = function(thisArg, context) {
if (((this._bitField & 50397184) === 0)) {
this._resolveCallback(context.target);
}
};
var bindingRejected = function(e, context) {
if (!context.promiseRejectionQueued) this._reject(e);
};
Promise.prototype.bind = function (thisArg) {
if (!calledBind) {
calledBind = true;
Promise.prototype._propagateFrom = debug.propagateFromFunction();
Promise.prototype._boundValue = debug.boundValueFunction();
}
var maybePromise = tryConvertToPromise(thisArg);
var ret = new Promise(INTERNAL);
ret._propagateFrom(this, 1);
var target = this._target();
ret._setBoundTo(maybePromise);
if (maybePromise instanceof Promise) {
var context = {
promiseRejectionQueued: false,
promise: ret,
target: target,
bindingPromise: maybePromise
};
target._then(INTERNAL, targetRejected, undefined, ret, context);
maybePromise._then(
bindingResolved, bindingRejected, undefined, ret, context);
ret._setOnCancel(maybePromise);
} else {
ret._resolveCallback(target);
}
return ret;
};
Promise.prototype._setBoundTo = function (obj) {
if (obj !== undefined) {
this._bitField = this._bitField | 2097152;
this._boundTo = obj;
} else {
this._bitField = this._bitField & (~2097152);
}
};
Promise.prototype._isBound = function () {
return (this._bitField & 2097152) === 2097152;
};
Promise.bind = function (thisArg, value) {
return Promise.resolve(value).bind(thisArg);
};
};
... ...
"use strict";
var old;
if (typeof Promise !== "undefined") old = Promise;
function noConflict() {
try { if (Promise === bluebird) Promise = old; }
catch (e) {}
return bluebird;
}
var bluebird = require("./promise")();
bluebird.noConflict = noConflict;
module.exports = bluebird;
... ...
"use strict";
var cr = Object.create;
if (cr) {
var callerCache = cr(null);
var getterCache = cr(null);
callerCache[" size"] = getterCache[" size"] = 0;
}
module.exports = function(Promise) {
var util = require("./util");
var canEvaluate = util.canEvaluate;
var isIdentifier = util.isIdentifier;
var getMethodCaller;
var getGetter;
if (!false) {
var makeMethodCaller = function (methodName) {
return new Function("ensureMethod", " \n\
return function(obj) { \n\
'use strict' \n\
var len = this.length; \n\
ensureMethod(obj, 'methodName'); \n\
switch(len) { \n\
case 1: return obj.methodName(this[0]); \n\
case 2: return obj.methodName(this[0], this[1]); \n\
case 3: return obj.methodName(this[0], this[1], this[2]); \n\
case 0: return obj.methodName(); \n\
default: \n\
return obj.methodName.apply(obj, this); \n\
} \n\
}; \n\
".replace(/methodName/g, methodName))(ensureMethod);
};
var makeGetter = function (propertyName) {
return new Function("obj", " \n\
'use strict'; \n\
return obj.propertyName; \n\
".replace("propertyName", propertyName));
};
var getCompiled = function(name, compiler, cache) {
var ret = cache[name];
if (typeof ret !== "function") {
if (!isIdentifier(name)) {
return null;
}
ret = compiler(name);
cache[name] = ret;
cache[" size"]++;
if (cache[" size"] > 512) {
var keys = Object.keys(cache);
for (var i = 0; i < 256; ++i) delete cache[keys[i]];
cache[" size"] = keys.length - 256;
}
}
return ret;
};
getMethodCaller = function(name) {
return getCompiled(name, makeMethodCaller, callerCache);
};
getGetter = function(name) {
return getCompiled(name, makeGetter, getterCache);
};
}
function ensureMethod(obj, methodName) {
var fn;
if (obj != null) fn = obj[methodName];
if (typeof fn !== "function") {
var message = "Object " + util.classString(obj) + " has no method '" +
util.toString(methodName) + "'";
throw new Promise.TypeError(message);
}
return fn;
}
function caller(obj) {
var methodName = this.pop();
var fn = ensureMethod(obj, methodName);
return fn.apply(obj, this);
}
Promise.prototype.call = function (methodName) {
var $_len = arguments.length;var args = new Array(Math.max($_len - 1, 0)); for(var $_i = 1; $_i < $_len; ++$_i) {args[$_i - 1] = arguments[$_i];};
if (!false) {
if (canEvaluate) {
var maybeCaller = getMethodCaller(methodName);
if (maybeCaller !== null) {
return this._then(
maybeCaller, undefined, undefined, args, undefined);
}
}
}
args.push(methodName);
return this._then(caller, undefined, undefined, args, undefined);
};
function namedGetter(obj) {
return obj[this];
}
function indexedGetter(obj) {
var index = +this;
if (index < 0) index = Math.max(0, index + obj.length);
return obj[index];
}
Promise.prototype.get = function (propertyName) {
var isIndex = (typeof propertyName === "number");
var getter;
if (!isIndex) {
if (canEvaluate) {
var maybeGetter = getGetter(propertyName);
getter = maybeGetter !== null ? maybeGetter : namedGetter;
} else {
getter = namedGetter;
}
} else {
getter = indexedGetter;
}
return this._then(getter, undefined, undefined, propertyName, undefined);
};
};
... ...
"use strict";
module.exports = function(Promise, PromiseArray, apiRejection, debug) {
var util = require("./util");
var tryCatch = util.tryCatch;
var errorObj = util.errorObj;
var async = Promise._async;
Promise.prototype["break"] = Promise.prototype.cancel = function() {
if (!debug.cancellation()) return this._warn("cancellation is disabled");
var promise = this;
var child = promise;
while (promise._isCancellable()) {
if (!promise._cancelBy(child)) {
if (child._isFollowing()) {
child._followee().cancel();
} else {
child._cancelBranched();
}
break;
}
var parent = promise._cancellationParent;
if (parent == null || !parent._isCancellable()) {
if (promise._isFollowing()) {
promise._followee().cancel();
} else {
promise._cancelBranched();
}
break;
} else {
if (promise._isFollowing()) promise._followee().cancel();
promise._setWillBeCancelled();
child = promise;
promise = parent;
}
}
};
Promise.prototype._branchHasCancelled = function() {
this._branchesRemainingToCancel--;
};
Promise.prototype._enoughBranchesHaveCancelled = function() {
return this._branchesRemainingToCancel === undefined ||
this._branchesRemainingToCancel <= 0;
};
Promise.prototype._cancelBy = function(canceller) {
if (canceller === this) {
this._branchesRemainingToCancel = 0;
this._invokeOnCancel();
return true;
} else {
this._branchHasCancelled();
if (this._enoughBranchesHaveCancelled()) {
this._invokeOnCancel();
return true;
}
}
return false;
};
Promise.prototype._cancelBranched = function() {
if (this._enoughBranchesHaveCancelled()) {
this._cancel();
}
};
Promise.prototype._cancel = function() {
if (!this._isCancellable()) return;
this._setCancelled();
async.invoke(this._cancelPromises, this, undefined);
};
Promise.prototype._cancelPromises = function() {
if (this._length() > 0) this._settlePromises();
};
Promise.prototype._unsetOnCancel = function() {
this._onCancelField = undefined;
};
Promise.prototype._isCancellable = function() {
return this.isPending() && !this._isCancelled();
};
Promise.prototype.isCancellable = function() {
return this.isPending() && !this.isCancelled();
};
Promise.prototype._doInvokeOnCancel = function(onCancelCallback, internalOnly) {
if (util.isArray(onCancelCallback)) {
for (var i = 0; i < onCancelCallback.length; ++i) {
this._doInvokeOnCancel(onCancelCallback[i], internalOnly);
}
} else if (onCancelCallback !== undefined) {
if (typeof onCancelCallback === "function") {
if (!internalOnly) {
var e = tryCatch(onCancelCallback).call(this._boundValue());
if (e === errorObj) {
this._attachExtraTrace(e.e);
async.throwLater(e.e);
}
}
} else {
onCancelCallback._resultCancelled(this);
}
}
};
Promise.prototype._invokeOnCancel = function() {
var onCancelCallback = this._onCancel();
this._unsetOnCancel();
async.invoke(this._doInvokeOnCancel, this, onCancelCallback);
};
Promise.prototype._invokeInternalOnCancel = function() {
if (this._isCancellable()) {
this._doInvokeOnCancel(this._onCancel(), true);
this._unsetOnCancel();
}
};
Promise.prototype._resultCancelled = function() {
this.cancel();
};
};
... ...
"use strict";
module.exports = function(NEXT_FILTER) {
var util = require("./util");
var getKeys = require("./es5").keys;
var tryCatch = util.tryCatch;
var errorObj = util.errorObj;
function catchFilter(instances, cb, promise) {
return function(e) {
var boundTo = promise._boundValue();
predicateLoop: for (var i = 0; i < instances.length; ++i) {
var item = instances[i];
if (item === Error ||
(item != null && item.prototype instanceof Error)) {
if (e instanceof item) {
return tryCatch(cb).call(boundTo, e);
}
} else if (typeof item === "function") {
var matchesPredicate = tryCatch(item).call(boundTo, e);
if (matchesPredicate === errorObj) {
return matchesPredicate;
} else if (matchesPredicate) {
return tryCatch(cb).call(boundTo, e);
}
} else if (util.isObject(e)) {
var keys = getKeys(item);
for (var j = 0; j < keys.length; ++j) {
var key = keys[j];
if (item[key] != e[key]) {
continue predicateLoop;
}
}
return tryCatch(cb).call(boundTo, e);
}
}
return NEXT_FILTER;
};
}
return catchFilter;
};
... ...
"use strict";
module.exports = function(Promise) {
var longStackTraces = false;
var contextStack = [];
Promise.prototype._promiseCreated = function() {};
Promise.prototype._pushContext = function() {};
Promise.prototype._popContext = function() {return null;};
Promise._peekContext = Promise.prototype._peekContext = function() {};
function Context() {
this._trace = new Context.CapturedTrace(peekContext());
}
Context.prototype._pushContext = function () {
if (this._trace !== undefined) {
this._trace._promiseCreated = null;
contextStack.push(this._trace);
}
};
Context.prototype._popContext = function () {
if (this._trace !== undefined) {
var trace = contextStack.pop();
var ret = trace._promiseCreated;
trace._promiseCreated = null;
return ret;
}
return null;
};
function createContext() {
if (longStackTraces) return new Context();
}
function peekContext() {
var lastIndex = contextStack.length - 1;
if (lastIndex >= 0) {
return contextStack[lastIndex];
}
return undefined;
}
Context.CapturedTrace = null;
Context.create = createContext;
Context.deactivateLongStackTraces = function() {};
Context.activateLongStackTraces = function() {
var Promise_pushContext = Promise.prototype._pushContext;
var Promise_popContext = Promise.prototype._popContext;
var Promise_PeekContext = Promise._peekContext;
var Promise_peekContext = Promise.prototype._peekContext;
var Promise_promiseCreated = Promise.prototype._promiseCreated;
Context.deactivateLongStackTraces = function() {
Promise.prototype._pushContext = Promise_pushContext;
Promise.prototype._popContext = Promise_popContext;
Promise._peekContext = Promise_PeekContext;
Promise.prototype._peekContext = Promise_peekContext;
Promise.prototype._promiseCreated = Promise_promiseCreated;
longStackTraces = false;
};
longStackTraces = true;
Promise.prototype._pushContext = Context.prototype._pushContext;
Promise.prototype._popContext = Context.prototype._popContext;
Promise._peekContext = Promise.prototype._peekContext = peekContext;
Promise.prototype._promiseCreated = function() {
var ctx = this._peekContext();
if (ctx && ctx._promiseCreated == null) ctx._promiseCreated = this;
};
};
return Context;
};
... ...