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fflorent/gist:4418708

Forked from anonymous/gist:4418578
Last active December 10, 2015 10:08
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gistfile1.txt
function loop(f)
{
for(var i = 0; i < 10000; i++)
f(Math.floor(Math.random() * 2 - 1));
}
console.time(">-1");
loop(function(index) index * eval("1") > -1);
console.timeEnd(">-1");
console.time("!=-1");
loop(function(index) index * eval("1") != -1);
console.timeEnd("!=-1");
console.time("!== -1");
loop(function(index) index * eval("1") !== -1);
console.timeEnd("!== -1");
console.time(">=0");
loop(function(index) index * eval("1") >= 0);
console.timeEnd(">=0");
console.time("~");
loop(function(index) ~index * eval("1"));
console.timeEnd("~");
/*
* My results:
*
* >-1: 625ms
* !=-1: 624ms
* !== -1: 616ms
* >=0: 612ms
* ~: 706ms
*/
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