Bool vs doublebang

JavaScript performance comparison

Test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var foo = 1;
};
</script>

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Testing in unknown unknown
Test Ops/sec
Double bang
!!foo;
pending…
Boolean typecast
Boolean(foo);
pending…
Bitwise
~~foo;
pending…
Double equals
(foo == true);
pending…
Just the variable
foo;
pending…

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