indexOf check

JavaScript performance comparison

Revision 2 of this test case created

Info

different ways to do array checks with indexOf

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
 
<script>
Benchmark.prototype.setup = function() {
    var a=[],c=50000;
    while(--c){
      a.push('1');
    }
    a.push('2');
};
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
!=-1
a.indexOf('2')!=-1;
pending…
!!~
!!~a.indexOf('2');
pending…
jQ !=
$.inArray(a, '2') != -1
pending…
jQ !!~
!!~$.inArray(a, '2')
pending…

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