binSwapVars

JavaScript performance comparison

Revision 6 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var a = ~~(Math.random()*100000);
    var b = ~~(Math.random()*100000);
    var A = a, B = b;
};

Benchmark.prototype.teardown = function() {
    if (!(a === A && b === B) && !(a === B && b === A)) throw "wtf?";
};
</script>

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Testing in unknown unknown
Test Ops/sec
binary
a^=b; b^=a; a^=b;
pending…
temp variable
var c = a;
a = b;
b = c;
delete c;
pending…
js 1.7
[a,b]=[b,a]
pending…

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