Variable Swapping Bitwise

JavaScript performance comparison

Test case created

Preparation code

Benchmark.prototype.setup = function() {
    var a = 10;
    var b = 99;

Test runner

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Testing in unknown unknown
Test Ops/sec
Bitwise XORing
a^=b; b^=a; a^=b;
Temp var
var c = a;
a = b;
b = c;
Temp var erroneous delete
var c = a;
a = b;
b = c;
delete c;

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