chore(Common): update the Common.now#55
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On IE9, perf.now doesn't exists and it throw an error. I updated the function to mach with the gist
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You should rewrite this line to simply be a reference to Date.now. It outperforms creating a new Date instance and it makes the code cleaner.
Date.now is supported by all ECMAScript 5 browsers (IE 9+).
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If this is migrated to Date.now then it should be compatibility checked as well and Date.getTime() should still be a fallback. Not all clients are capable of supporting IE9+; we use Matter.js on IE6, for instance.
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In that case yes, you could add it as a check before defaulting to new Date().getTime()
If performance is not available we use Date.now If Date.now is not available (IE < 9) we use Date.getTime See commentaries: #55
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On IE9, perf.now doesn't exists and it throw an error. I updated the
function to mach with the gist