babel-plugin-polyfill-corejs3

Install

Using npm:

``sh
npm install --save-dev babel-plugin-polyfill-corejs3
`

or using yarn:

`sh
yarn add babel-plugin-polyfill-corejs3 --dev
`

Usage

Add this plugin to your Babel configuration:

`json
{
"plugins": [["polyfill-corejs3", { "method": "usage-global", "version": "3.48" }]]
}
`

This package supports the usage-pure, usage-global, and entry-global methods.
When entry-global is used, it replaces imports to core-js.

Options

See here for a list of options supported by every polyfill provider.

$3

string, defaults to "3.0".

This option only has an effect when used alongside "method": "usage-global" or "method": "usage-pure". It is recommended to specify the minor version you are using as core-js@3.0 may not include polyfills for the latest features. If you are bundling an app, you can provide the version directly from your node modules:

`js
{
plugins: [
["polyfill-corejs3", {
"method": "usage-pure",
// use core-js/package.json if you are using usage-global
"version": require("core-js-pure/package.json").version
}]
]
}
`

If you are a library author, specify a reasonably modern core-js version in your
package.json and provide the plugin the minimal supported version.

`json
{
"dependencies": {
"core-js": "^3.48.0"
}
}
`
`js
{
plugins: [
["polyfill-corejs3", {
"method": "usage-global",
// improvise if you have more complicated version spec, e.g. > 3.1.4
"version": require("./package.json").dependencies["core-js"]
}]
]
}
`

$3

boolean, defaults to false.

This option only has an effect when used alongside "method": "usage-global" or "method": "usage-pure". When proposals are true`, any ES proposal supported by core-js will be polyfilled as well.