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JS Math.fastCeil for performance
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| /** | |
| * 90% faster that native Math.ceil() | |
| * http://jsperf.com/math-ceil-v-math-fastceil | |
| */ | |
| Math.fastCeil = function (n) { | |
| var t = ~~n; | |
| return t === n ? n : (n > 0) ? (t + 1) : (t - 1) | |
| }; |
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Now it seems to be slower than Math.ceil()
Tested in: Firefox 51 and in Chrome 50