looptest

JavaScript performance comparison

Revision 2 of this test case created

Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    array = [];
    for(var i=0; i<100; i++){
    array.push(i);
    }
    
    function isVisible(){
    return true;
    }
    function context(){
    return true
    }
  };
</script>

Test runner

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Testing in unknown unknown
Test Ops/sec
while
 
var i = array.length
        while(i--){
            b = array[i];
            true && isVisible() && context()
        }
 pending…
for
 
        for(var k=0, le = array.length, b; k < le; ++k){
            b = array[k];
            
            if(true && isVisible() && context()){
true
                
            }
        }
 pending…
while optimized
 
var i = array.length
        while(i-- && (b = array[i]) && true && isVisible() && context());
 pending…
for loop down
 
        for(var k = array.length, b; k--;){
            b = array[k];
            
            if(true && isVisible() && context()){
true
                
            }
        }
 pending…
for length optiomized
 
        for(var k = array.length, b; k--;){
            b = array[k];
            
            true && isVisible() && context()

        }
 pending…

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