Pre-allocation of array

Benchmark created by Adam Fullen on

Description

Tests performance in pre-allocating array memory

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Pre-allocated array
var max = 10000;
var a = new Array(max);
var aLength = 0;
a.length = aLength;
a[aLength] = aLength;

for(var x = 0; x < max; x++){
a[aLength++] = aLength;
}


 
ready
Pushed Array
var max = 10000;
var a = new Array();

for(var x = 0; x < max; x++){
a.push(x);
}
ready

Revisions

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  • Revision 1: published by Adam Fullen on