mirror of
https://github.com/photonstorm/phaser
synced 2025-01-11 04:38:51 +00:00
33 lines
674 B
JavaScript
33 lines
674 B
JavaScript
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/**
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* @copyright 2016 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
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*/
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/**
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* performance.now
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*/
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(function(){
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if ("performance" in window == false) {
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window.performance = {};
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}
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Date.now = (Date.now || function () { // thanks IE8
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return new Date().getTime();
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});
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if ("now" in window.performance == false)
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{
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var nowOffset = Date.now();
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if (performance.timing && performance.timing.navigationStart){
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nowOffset = performance.timing.navigationStart
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}
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window.performance.now = function now(){
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return Date.now() - nowOffset;
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}
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}
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})();
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