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/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
'use strict';
if (typeof Promise === 'undefined') {
// Rejection tracking prevents a common issue where React gets into an
// inconsistent state due to an error, but it gets swallowed by a Promise,
// and the user has no idea what causes React's erratic future behavior.
require('promise/lib/rejection-tracking').enable();
self.Promise = require('promise/lib/es6-extensions.js');
}
// Make sure we're in a Browser-like environment before importing polyfills
// This prevents `fetch()` from being imported in a Node test environment
if (typeof window !== 'undefined') {
// fetch() polyfill for making API calls.
require('whatwg-fetch');
}
// Object.assign() is commonly used with React.
// It will use the native implementation if it's present and isn't buggy.
Object.assign = require('object-assign');
// Support for...of (a commonly used syntax feature that requires Symbols)
require('core-js/features/symbol');
// Support iterable spread (...Set, ...Map)
require('core-js/features/array/from');