babelify-es6-polyfill/polyfill.js

A pure ES5 and ES6 polyfill for babelify that only includes standardised features

'use strict';

require('./shim.js');

require('regenerator/runtime');

if (global._babelPolyfill) {
  throw new Error('only one instance of babel/polyfill is allowed');
}

global._babelPolyfill = true;