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- /**
- * Copyright (c) 2014-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 requestAnimationFramePolyfill
- */
- var emptyFunction = require("./emptyFunction");
- var nativeRequestAnimationFrame = require("./nativeRequestAnimationFrame");
- var lastTime = 0;
- var requestAnimationFrame = nativeRequestAnimationFrame || function (callback) {
- var currTime = Date.now();
- var timeDelay = Math.max(0, 16 - (currTime - lastTime));
- lastTime = currTime + timeDelay;
- return global.setTimeout(function () {
- callback(Date.now());
- }, timeDelay);
- }; // Works around a rare bug in Safari 6 where the first request is never invoked.
- requestAnimationFrame(emptyFunction);
- module.exports = requestAnimationFrame;
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