babel-preset-test-bundled-dependencies/node_modules/es6-weak-map/implement.js

Allow custom config for create-react-app without ejecting

'use strict';

if (!require('./is-implemented')()) {
	Object.defineProperty(require('es5-ext/global'), 'WeakMap',
		{ value: require('./polyfill'), configurable: true, enumerable: false,
			writable: true });
}