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yukulele/performance.now()-polyfill.js

Forked from paulirish/performance.now()-polyfill.js
Last active August 24, 2018 10:39
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performance.now()-polyfill.js
// if Navigation Timing is not supported, fallback to Date.naw() called on start (sufficient in many cases)
// Date.now is also polyfilled
(function(p){
if(!Date.now)
Date.now = function(){return +new Date};
if (!p.now){
var start = (p.timing && p.timing.navigationStart) || Date.now();
p.now = function now(){
return Date.now() - start;
};
}
})( this.performance || ( this.performance = {} ) );
@wadeharrell
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this.performance || ( this.performance = {} )
will get you the global, even if that is not window ;)

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