# core-js
[![Sponsors on Open Collective](https://opencollective.com/core-js/sponsors/badge.svg)](#raising-funds) [![Backers on Open Collective](https://opencollective.com/core-js/backers/badge.svg)](#raising-funds) [![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 :)
## [core-js@3, babel and a look into the future](https://github.com/zloirock/core-js/tree/master/docs/2019-03-19-core-js-3-babel-and-a-look-into-the-future.md)
## Raising funds
`core-js` isn't backed by a company, so the future of this project depends on you. Become a sponsor or a backer [**on Open Collective**](https://opencollective.com/core-js) or [**on Patreon**](https://www.patreon.com/zloirock) if you are interested in `core-js`.
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---
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---
**It's documentation for obsolete `core-js@2`. If you looking documentation for actual `core-js` version, please, check [this branch](https://github.com/zloirock/core-js/tree/master).**
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/v2.6.11/client/core.min.js): Includes all features, standard and non-standard.
* [as a library](https://raw.githack.com/zloirock/core-js/v2.6.11/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/v2.6.11/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 `Arra
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基于springboot+vue的在线电商和拍卖管理系统源码+数据库(毕业设计).zip (2000个子文件)
index.css 414KB
index.b0ff4c21.css 81KB
index.2d26d90a.css 79KB
skin.min.css 42KB
visualblocks.css 5KB
content.min.css 4KB
content.inline.min.css 3KB
prism.css 2KB
index.html 1006B
index.html 988B
index.html 985B
index.html 495B
AdminOrderController.java 48KB
AdminOrderService.java 45KB
BCrypt.java 31KB
AdminGoodsService.java 26KB
PDFUtil.java 24KB
DateUtil.java 23KB
AdminGoodsController.java 23KB
AdminArticleClassController.java 20KB
AdminMenuController.java 12KB
NotifyService.java 12KB
AdminGoodsRuleService.java 11KB
RegexUtil.java 11KB
AdminGoodsRebateRuleService.java 10KB
AdminStatController.java 9KB
AdminUpdateVersionController.java 9KB
AdminRoleController.java 9KB
SystemConfig.java 9KB
ProcessWindowsBatUtil.java 8KB
AdminWenBoGuanArticleListController.java 8KB
AdminPromotionSeckillRuleController.java 8KB
AdminAuctionZhuanchangRuleCurrentService.java 8KB
AdminGrouponRulesController.java 8KB
OrderJob.java 8KB
AdminAuthorcorpService.java 8KB
SystemInistService.java 8KB
AdminHuodongsetService.java 7KB
AdminPromotionUserGoodsOrdersController.java 7KB
AdminPromotionGoodsRebateOrderController.java 7KB
AdminCompanyService.java 7KB
AdminAuthController.java 7KB
PromotionJob.java 7KB
PermissionUtil.java 7KB
AdminCommonLogController.java 7KB
AdminCategoryController.java 7KB
QCodeService.java 6KB
AdminCompanyController.java 6KB
AdminAuctionDajiaRuleCurrentController.java 6KB
AdminCommonDBController.java 6KB
AdminAuctionZhuanchangRuleCurrentController.java 6KB
AdminAdminController.java 6KB
AdminBackupDatabaseController.java 5KB
AdminGrouponOrdersController.java 5KB
AdminStoreService.java 5KB
ResponseUtil.java 5KB
WxMessageUtil.java 5KB
AdminPrivateMakeRuleController.java 5KB
AdminRegionController.java 5KB
AdminDicmainService.java 5KB
AdminRecommendService.java 5KB
AdminConfigController.java 5KB
AdminOpadminDefService.java 5KB
AdminCouponController.java 5KB
JacksonUtil.java 5KB
AlipayUtil.java 5KB
AdminBrandController.java 5KB
AdminUserinfoDefService.java 4KB
AdminUserController.java 4KB
StorageProperties.java 4KB
AdminPromotionSeckillOrdersController.java 4KB
TencentStorage.java 4KB
AdminHomeBackgroundImageController.java 4KB
ExpressService.java 4KB
AdminPromotionUserGoodsRuleController.java 4KB
LogHelper.java 4KB
AdminPickSiteController.java 4KB
AdminAuthorizingRealm.java 4KB
AdminArticleListController.java 4KB
AdminStorageController.java 4KB
AdminTopicController.java 4KB
AdminHomeIconController.java 4KB
AdminKeywordController.java 4KB
AdminIssueController.java 3KB
AdminAdController.java 3KB
AliyunStorage.java 3KB
Swagger2Config.java 3KB
NotifyProperties.java 3KB
AdminAuthororcorpController.java 3KB
AdminOpadminDefController.java 3KB
QiniuStorage.java 3KB
UserTicket.java 3KB
AdminDicmainController.java 3KB
AdminUserinfoDefController.java 3KB
ProcessLinuxShellUtil.java 3KB
HttpUtil.java 3KB
AdminPromotionGoodsRebateRuleController.java 3KB
ShiroConfig.java 3KB
AdminStoreController.java 3KB
AdminOpadminInfoController.java 3KB
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