each vs map

JavaScript performance comparison

Test case created by bognix

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
 

Preparation code output

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Testing in unknown unknown
Test Ops/sec
map
var mappedArray = [1,2,3,4,5,6,7]
var b = mappedArray.map(function(element){
    return element*2;
})
pending…
each
var mappedArray = [1,2,3,4,5,6,7]
$.each(mappedArray, function(){
   mappedArray[mappedArray.indexOf(this)] = this*2
})
pending…

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