wp-calypso/packages/calypso-polyfills/README.md

Calypso Polyfills

This package includes several configurations for required polyfills for Calypso, targeting two different environments: node, and browsers.

Features

calypso-polyfills ties into the Calypso build process, to ensure that only the required polyfills for each build target are needed. Through the use of Babel's preset-env and browserslist configurations, we strip out any polyfills that are supported for all browsers that are supported by that build target.

See the root directory's package.json for the list of supported browsers for each build target.

Usage

In Node.js, simply require the package:

require( '@automattic/calypso-polyfills' );

In a browser, a similar naked import will include the polyfills:

import '@automattic/calypso-polyfills';