@sgalinski/responsive-side-menu/src/js/polyfills.js

A simple and extendable slide-in menu

const ObjectAssignPolyfill = require('es6-object-assign'),
	ArrayFromPolyfill = require('array-from/polyfill');

export default class Polyfills {

	static load() {
		if (!Object.hasOwnProperty('assign')) {
			ObjectAssignPolyfill.polyfill();
		}

		if (!Array.hasOwnProperty('from')) {
			Array.from = ArrayFromPolyfill;
		}

		require('inert-polyfill');
	}
}