/** * Copyright (c) 2013-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. * * @providesModule performance * @typechecks */ 'use strict'; var ExecutionEnvironment = require("./ExecutionEnvironment"); var performance; if (ExecutionEnvironment.canUseDOM) { performance = window.performance || window.msPerformance || window.webkitPerformance; } module.exports = performance || {};