[`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, sting 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: '3.30', // used `core-js` version, by default - the latest
inverse: false, // inverse of the result - shows modules that are NOT required for the target environment
`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
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:
