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authorlittleblack111 <littleblack11111@gmail.com>2026-05-18 23:10:59 +0800
committerlittleblack111 <littleblack11111@gmail.com>2026-05-18 23:41:44 +0800
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-![logo](https://user-images.githubusercontent.com/2213682/146607186-8e13ddef-26a4-4ebf-befd-5aac9d77c090.png)
-
-<div align="center">
-
-[![fundraising](https://opencollective.com/core-js/all/badge.svg?label=fundraising)](https://opencollective.com/core-js) [![PRs welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](https://github.com/zloirock/core-js/blob/master/CONTRIBUTING.md) [![version](https://img.shields.io/npm/v/core-js-compat.svg)](https://www.npmjs.com/package/core-js-compat) [![core-js-compat downloads](https://img.shields.io/npm/dm/core-js-compat.svg?label=npm%20i%20core-js-compat)](https://npm-stat.com/charts.html?package=core-js&package=core-js-pure&package=core-js-compat&from=2014-11-18)
-
-</div>
-
-**I highly recommend reading this: [So, what's next?](https://github.com/zloirock/core-js/blob/master/docs/2023-02-14-so-whats-next.md)**
----
-
-[`core-js-compat` package](https://github.com/zloirock/core-js/tree/master/packages/core-js-compat) contains data about the necessity of [`core-js`](https://github.com/zloirock/core-js) modules and API for getting a list of required core-js modules by browserslist query.
-
-```js
-import compat from 'core-js-compat';
-
-const {
- list, // array of required modules
- targets, // object with targets for each module
-} = compat({
- targets: '> 1%', // browserslist query or object of minimum environment versions to support, see below
- modules: [ // optional list / filter of modules - regex, string or an array of them:
- 'core-js/actual', // - an entry point
- 'esnext.array.unique-by', // - a module name (or just a start of a module name)
- /^web\./, // - regex that a module name must satisfy
- ],
- exclude: [ // optional list / filter of modules to exclude, the signature is similar to `modules` option
- 'web.atob',
- ],
- version: '3.38', // used `core-js` version, by default - the latest
- inverse: false, // inverse of the result - shows modules that are NOT required for the target environment
-});
-
-console.log(targets);
-/* =>
-{
- 'es.error.cause': { ios: '14.5-14.8' },
- 'es.aggregate-error.cause': { ios: '14.5-14.8' },
- 'es.array.at': { ios: '14.5-14.8' },
- 'es.array.find-last': { firefox: '100', ios: '14.5-14.8' },
- 'es.array.find-last-index': { firefox: '100', ios: '14.5-14.8' },
- 'es.array.includes': { firefox: '100' },
- 'es.array.push': { chrome: '100', edge: '101', ios: '14.5-14.8', safari: '15.4' },
- 'es.array.unshift': { ios: '14.5-14.8', safari: '15.4' },
- 'es.object.has-own': { ios: '14.5-14.8' },
- 'es.regexp.flags': { chrome: '100', edge: '101' },
- 'es.string.at-alternative': { ios: '14.5-14.8' },
- 'es.typed-array.at': { ios: '14.5-14.8' },
- 'es.typed-array.find-last': { firefox: '100', ios: '14.5-14.8' },
- 'es.typed-array.find-last-index': { firefox: '100', ios: '14.5-14.8' },
- 'esnext.array.group': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' },
- 'esnext.array.group-by': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' },
- 'esnext.array.group-by-to-map': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' },
- 'esnext.array.group-to-map': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' },
- 'esnext.array.to-reversed': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' },
- 'esnext.array.to-sorted': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' },
- 'esnext.array.to-spliced': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' },
- 'esnext.array.unique-by': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' },
- 'esnext.array.with': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' },
- 'esnext.typed-array.to-reversed': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' },
- 'esnext.typed-array.to-sorted': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' },
- 'esnext.typed-array.to-spliced': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' },
- 'esnext.typed-array.with': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' },
- 'web.dom-exception.stack': { chrome: '100', edge: '101', ios: '14.5-14.8', safari: '15.4' },
- 'web.immediate': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' },
- 'web.structured-clone': { chrome: '100', edge: '101', firefox: '100', ios: '14.5-14.8', safari: '15.4' }
-}
-*/
-```
-
-### `targets` option
-`targets` could be [a `browserslist` query](https://github.com/browserslist/browserslist) or a targets object that specifies minimum environment versions to support:
-```js
-// browserslist query:
-'defaults, not IE 11, maintained node versions'
-// object (sure, all those fields optional):
-{
- android: '4.0', // Android WebView version
- bun: '0.1.2', // Bun version
- chrome: '38', // Chrome version
- 'chrome-android': '18', // Chrome for Android version
- deno: '1.12', // Deno version
- edge: '13', // Edge version
- electron: '5.0', // Electron framework version
- firefox: '15', // Firefox version
- 'firefox-android': '4', // Firefox for Android version
- hermes: '0.11', // Hermes version
- ie: '8', // Internet Explorer version
- ios: '13.0', // iOS Safari version
- node: 'current', // NodeJS version, you can use 'current' for set it to currently used
- opera: '12', // Opera version
- 'opera-android': '7', // Opera for Android version
- phantom: '1.9', // PhantomJS headless browser version
- quest: '5.0', // Meta Quest Browser version
- 'react-native': '0.70', // React Native version (default Hermes engine)
- rhino: '1.7.13', // Rhino engine version
- safari: '14.0', // Safari version
- samsung: '14.0', // Samsung Internet version
- esmodules: true, // That option set target to minimum supporting ES Modules versions of all browsers
- browsers: '> 0.25%', // Browserslist query or object with target browsers
-}
-```
-
-### Additional API:
-
-```js
-// equals of of the method from the example above
-require('core-js-compat/compat')({ targets, modules, version }); // => { list: Array<ModuleName>, targets: { [ModuleName]: { [EngineName]: EngineVersion } } }
-// or
-require('core-js-compat').compat({ targets, modules, version }); // => { list: Array<ModuleName>, targets: { [ModuleName]: { [EngineName]: EngineVersion } } }
-
-// full compat data:
-require('core-js-compat/data'); // => { [ModuleName]: { [EngineName]: EngineVersion } }
-// or
-require('core-js-compat').data; // => { [ModuleName]: { [EngineName]: EngineVersion } }
-
-// map of modules by `core-js` entry points:
-require('core-js-compat/entries'); // => { [EntryPoint]: Array<ModuleName> }
-// or
-require('core-js-compat').entries; // => { [EntryPoint]: Array<ModuleName> }
-
-// full list of modules:
-require('core-js-compat/modules'); // => Array<ModuleName>
-// or
-require('core-js-compat').modules; // => Array<ModuleName>
-
-// the subset of modules which available in the passed `core-js` version:
-require('core-js-compat/get-modules-list-for-target-version')('3.38'); // => Array<ModuleName>
-// or
-require('core-js-compat').getModulesListForTargetVersion('3.38'); // => Array<ModuleName>
-```
-
-If you wanna help to improve this data, you could take a look at the related section of [`CONTRIBUTING.md`](https://github.com/zloirock/core-js/blob/master/CONTRIBUTING.md#how-to-update-core-js-compat-data). The visualization of compatibility data and the browser tests runner is available [here](http://zloirock.github.io/core-js/compat/), the example:
-
-![compat-table](https://user-images.githubusercontent.com/2213682/217452234-ccdcfc5a-c7d3-40d1-ab3f-86902315b8c3.png)