# core-js
[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/zloirock/core-js?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [![version](https://img.shields.io/npm/v/core-js.svg)](https://www.npmjs.com/package/core-js) [![npm downloads](https://img.shields.io/npm/dm/core-js.svg)](http://npm-stat.com/charts.html?package=core-js&author=&from=2014-11-18) [![Build Status](https://travis-ci.org/zloirock/core-js.svg)](https://travis-ci.org/zloirock/core-js) [![devDependency status](https://david-dm.org/zloirock/core-js/dev-status.svg)](https://david-dm.org/zloirock/core-js?type=dev)
#### As advertising: the author is looking for a good job :)
Modular standard library for JavaScript. Includes polyfills for [ECMAScript 5](#ecmascript-5), [ECMAScript 6](#ecmascript-6): [promises](#ecmascript-6-promise), [symbols](#ecmascript-6-symbol), [collections](#ecmascript-6-collections), iterators, [typed arrays](#ecmascript-6-typed-arrays), [ECMAScript 7+ proposals](#ecmascript-7-proposals), [setImmediate](#setimmediate), etc. Some additional features such as [dictionaries](#dict) or [extended partial application](#partial-application). You can require only needed features or use it without global namespace pollution.
[*Example*](http://goo.gl/a2xexl):
```js
Array.from(new Set([1, 2, 3, 2, 1])); // => [1, 2, 3]
'*'.repeat(10); // => '**********'
Promise.resolve(32).then(x => console.log(x)); // => 32
setImmediate(x => console.log(x), 42); // => 42
```
[*Without global namespace pollution*](http://goo.gl/paOHb0):
```js
var core = require('core-js/library'); // With a modular system, otherwise use global `core`
core.Array.from(new core.Set([1, 2, 3, 2, 1])); // => [1, 2, 3]
core.String.repeat('*', 10); // => '**********'
core.Promise.resolve(32).then(x => console.log(x)); // => 32
core.setImmediate(x => console.log(x), 42); // => 42
```
### Index
- [Usage](#usage)
- [Basic](#basic)
- [CommonJS](#commonjs)
- [Custom build](#custom-build-from-the-command-line)
- [Supported engines](#supported-engines)
- [Features](#features)
- [ECMAScript 5](#ecmascript-5)
- [ECMAScript 6](#ecmascript-6)
- [ECMAScript 6: Object](#ecmascript-6-object)
- [ECMAScript 6: Function](#ecmascript-6-function)
- [ECMAScript 6: Array](#ecmascript-6-array)
- [ECMAScript 6: String](#ecmascript-6-string)
- [ECMAScript 6: RegExp](#ecmascript-6-regexp)
- [ECMAScript 6: Number](#ecmascript-6-number)
- [ECMAScript 6: Math](#ecmascript-6-math)
- [ECMAScript 6: Date](#ecmascript-6-date)
- [ECMAScript 6: Promise](#ecmascript-6-promise)
- [ECMAScript 6: Symbol](#ecmascript-6-symbol)
- [ECMAScript 6: Collections](#ecmascript-6-collections)
- [ECMAScript 6: Typed Arrays](#ecmascript-6-typed-arrays)
- [ECMAScript 6: Reflect](#ecmascript-6-reflect)
- [ECMAScript 7+ proposals](#ecmascript-7-proposals)
- [stage 4 proposals](#stage-4-proposals)
- [stage 3 proposals](#stage-3-proposals)
- [stage 2 proposals](#stage-2-proposals)
- [stage 1 proposals](#stage-1-proposals)
- [stage 0 proposals](#stage-0-proposals)
- [pre-stage 0 proposals](#pre-stage-0-proposals)
- [Web standards](#web-standards)
- [setTimeout / setInterval](#settimeout--setinterval)
- [setImmediate](#setimmediate)
- [iterable DOM collections](#iterable-dom-collections)
- [Non-standard](#non-standard)
- [Object](#object)
- [Dict](#dict)
- [partial application](#partial-application)
- [Number Iterator](#number-iterator)
- [escaping strings](#escaping-strings)
- [delay](#delay)
- [helpers for iterators](#helpers-for-iterators)
- [Missing polyfills](#missing-polyfills)
- [Changelog](./CHANGELOG.md)
## Usage
### Basic
```
npm i core-js
bower install core.js
```
```js
// Default
require('core-js');
// Without global namespace pollution
var core = require('core-js/library');
// Shim only
require('core-js/shim');
```
If you need complete build for browser, use builds from `core-js/client` path:
* [default](https://raw.githack.com/zloirock/core-js/v2.5.6/client/core.min.js): Includes all features, standard and non-standard.
* [as a library](https://raw.githack.com/zloirock/core-js/v2.5.6/client/library.min.js): Like "default", but does not pollute the global namespace (see [2nd example at the top](#core-js)).
* [shim only](https://raw.githack.com/zloirock/core-js/v2.5.6/client/shim.min.js): Only includes the standard methods.
Warning: if you use `core-js` with the extension of native objects, require all needed `core-js` modules at the beginning of entry point of your application, otherwise, conflicts may occur.
### CommonJS
You can require only needed modules.
```js
require('core-js/fn/set');
require('core-js/fn/array/from');
require('core-js/fn/array/find-index');
Array.from(new Set([1, 2, 3, 2, 1])); // => [1, 2, 3]
[1, 2, NaN, 3, 4].findIndex(isNaN); // => 2
// or, w/o global namespace pollution:
var Set = require('core-js/library/fn/set');
var from = require('core-js/library/fn/array/from');
var findIndex = require('core-js/library/fn/array/find-index');
from(new Set([1, 2, 3, 2, 1])); // => [1, 2, 3]
findIndex([1, 2, NaN, 3, 4], isNaN); // => 2
```
Available entry points for methods / constructors, as above examples, and namespaces: for example, `core-js/es6/array` (`core-js/library/es6/array`) contains all [ES6 `Array` features](#ecmascript-6-array), `core-js/es6` (`core-js/library/es6`) contains all ES6 features.
##### Caveats when using CommonJS API:
* `modules` path is internal API, does not inject all required dependencies and can be changed in minor or patch releases. Use it only for a custom build and / or if you know what are you doing.
* `core-js` is extremely modular and uses a lot of very tiny modules, because of that for usage in browsers bundle up `core-js` instead of usage loader for each file, otherwise, you will have hundreds of requests.
#### CommonJS and prototype methods without global namespace pollution
In the `library` version, we can't pollute prototypes of native constructors. Because of that, prototype methods transformed to static methods like in examples above. `babel` `runtime` transformer also can't transform them. But with transpilers we can use one more trick - [bind operator and virtual methods](https://github.com/zenparsing/es-function-bind). Special for that, available `/virtual/` entry points. Example:
```js
import fill from 'core-js/library/fn/array/virtual/fill';
import findIndex from 'core-js/library/fn/array/virtual/find-index';
Array(10)::fill(0).map((a, b) => b * b)::findIndex(it => it && !(it % 8)); // => 4
// or
import {fill, findIndex} from 'core-js/library/fn/array/virtual';
Array(10)::fill(0).map((a, b) => b * b)::findIndex(it => it && !(it % 8)); // => 4
```
### Custom build (from the command-line)
```
npm i core-js && cd node_modules/core-js && npm i
npm run grunt build:core.dict,es6 -- --blacklist=es6.promise,es6.math --library=on --path=custom uglify
```
Where `core.dict` and `es6` are modules (namespaces) names, which will be added to the build, `es6.promise` and `es6.math` are modules (namespaces) names, which will be excluded from the build, `--library=on` is flag for build without global namespace pollution and `custom` is target file name.
Available namespaces: for example, `es6.array` contains [ES6 `Array` features](#ecmascript-6-array), `es6` contains all modules whose names start with `es6`.
### Custom build (from external scripts)
[`core-js-builder`](https://www.npmjs.com/package/core-js-builder) package exports a function that takes the same parameters as the `build` target from the previous section. This will conditionally include or exclude certain parts of `core-js`:
```js
require('core-js-builder')({
modules: ['es6', 'core.dict'], // modules / namespaces
blacklist: ['es6.reflect'], /
没有合适的资源?快使用搜索试试~ 我知道了~
毕设&课设&项目&实训-基于wafer2框架开发的足球比赛猜猜看微信小程序。.zip
共2003个文件
js:1114个
md:665个
json:214个
1.该资源内容由用户上传,如若侵权请联系客服进行举报
2.虚拟产品一经售出概不退款(资源遇到问题,请及时私信上传者)
2.虚拟产品一经售出概不退款(资源遇到问题,请及时私信上传者)
版权申诉
0 下载量 136 浏览量
2024-02-05
15:16:16
上传
评论
收藏 16.79MB ZIP 举报
温馨提示
基于wafer2框架开发的足球比赛猜猜看微信小程序。
资源推荐
资源详情
资源评论
收起资源包目录
毕设&课设&项目&实训-基于wafer2框架开发的足球比赛猜猜看微信小程序。.zip (2003个子文件)
.DS_Store 6KB
.DS_Store 6KB
.DS_Store 6KB
regenerator.min.js 949KB
echarts.js 691KB
esprima.js 277KB
ajv.bundle.js 270KB
source-map.debug.js 254KB
nodent.min.js 217KB
defs.js 131KB
xregexp-all.js 126KB
ajv.min.js 117KB
js-yaml.js 105KB
source-map.js 100KB
escodegen.js 92KB
mimetypes.js 90KB
libbuildmail-test.js 49KB
tests.js 43KB
loader.js 42KB
axios.js 41KB
js-yaml.min.js 41KB
axios.js 40KB
source-map-consumer.js 37KB
buildmail.js 35KB
parser.js 34KB
index.js 32KB
builder.js 31KB
sbcs-data-generated.js 31KB
libmime.js 31KB
_stream_readable.js 31KB
connection.js 29KB
index.js 27KB
estraverse.js 27KB
builder.js 26KB
index.js 26KB
dumper.js 26KB
source-map.min.js 26KB
_stream_readable.js 25KB
validateConfig.js 24KB
validateStreamConfig.js 23KB
index.js 22KB
compiler.js 21KB
dbcs-codec.js 21KB
properties.js 20KB
_stream_writable.js 20KB
connection.js 20KB
array-bracket-even-spacing.js 19KB
x509.js 19KB
index.js 18KB
compiler.js 18KB
object-curly-even-spacing.js 17KB
channel.js 17KB
channel_api.js 16KB
buffer-more-ints.js 16KB
validate.js 15KB
tunnel.js 15KB
index.js 15KB
List.js 15KB
channel.js 14KB
pkcs8.js 14KB
api-test.js 14KB
source-map-generator.js 14KB
nodemailer.js 14KB
ajv.js 14KB
source-node.js 13KB
index.js 13KB
index.js 13KB
request.js 13KB
_stream_writable.js 13KB
axios.min.js 12KB
resolver.js 12KB
axios.min.js 12KB
client.js 11KB
required.js 11KB
codec.js 11KB
index.js 11KB
socks-client.js 11KB
parser.js 11KB
index.js 11KB
dhe.js 11KB
response.js 11KB
certificate.js 10KB
connection.js 10KB
validate.js 10KB
index.js 10KB
introspection.js 10KB
util.js 10KB
transaction.js 10KB
evaluation.js 10KB
compiler.js 10KB
tablecompiler.js 10KB
ip.js 10KB
index.js 10KB
Pool.js 10KB
compiler.js 10KB
index.js 10KB
computed-property-even-spacing.js 10KB
layouts.js 10KB
compiler.js 10KB
test.js 10KB
共 2003 条
- 1
- 2
- 3
- 4
- 5
- 6
- 21
资源评论
妄北y
- 粉丝: 1w+
- 资源: 1万+
下载权益
C知道特权
VIP文章
课程特权
开通VIP
上传资源 快速赚钱
- 我的内容管理 展开
- 我的资源 快来上传第一个资源
- 我的收益 登录查看自己的收益
- 我的积分 登录查看自己的积分
- 我的C币 登录后查看C币余额
- 我的收藏
- 我的下载
- 下载帮助
最新资源
- ModStartCMS v8.4.0 框架稳定性持续迭代,修复部分已知问题
- bleder 教室学校学生教育室办公室考试
- 人脸检测-使用OpenCV实现的动漫+漫画人脸检测算法-附项目源码-优质项目实战.zip
- 道路贴图,材质材料免费
- 人脸检测-基于OpenCV+Node.js+WebSockets实现的实时人脸检测应用-附项目源码-优质项目实战.zip
- 一些常见的MySQL死锁案例-mysql-deadlocks-master(源代码+案例+图解说明)
- UE4动画烘焙器-ue4.27
- 新建文件夹.zip
- 1103a2a791bbd96ea98021062e327495b1c422e32fb27e0c2d6404b1bd74b692.gif
- 同城相亲交友php小程序
资源上传下载、课程学习等过程中有任何疑问或建议,欢迎提出宝贵意见哦~我们会及时处理!
点击此处反馈
安全验证
文档复制为VIP权益,开通VIP直接复制
信息提交成功