Array Performance (v57)

Revision 57 of this benchmark created on

Description

Manual array lookups vs. holey arrays.

Setup

var a1 = [];
    var a2 = [];
    var o = {};
    for (var i=0;i<110000;++i){
        a1.push({id:i, name:"name1"});
        a2.push({id:i, name:"name1"});
        o[i] = {id:i, name:"name1"};
    }

Test runner

Ready to run.

Testing in
TestOps/sec
Manual Array Lookup
var id = 29938;
for (var i = 0; i < a1.length; i++) {
  if (a1[i].id = id) result = a1[i];
}
ready
Holey Array by Index
var id = 29938;
var result = a2[id];
ready
Object by Key
var id = '29938';
var result = o[id];
ready

Revisions

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