Array Performance (v173)

Revision 173 of this benchmark created on

Description

Manual array lookups vs. holey arrays.

Setup

var a1 = [{id: 9929938, name: 'name1'}, {id: 9932994, name: 'name1'}];

    var a2 = [];
    a2[9929938] = {id: 9929938, name: 'name1'};
    a2[9932994] = {id: 9932994, name: 'name1'};

    var o = {};
    o['9929938'] = {id: 9929938, name: 'name1'};
    o['9932994'] = {id: 9932994, name: 'name1'};

Test runner

Ready to run.

Testing in
TestOps/sec
Manual Array Lookup
var id = 9929938;
for (var i = 0; i < a1.length; i++) {
  if (a1[i].id === id) result = a1[i];
}
 
ready
Holey Array by Index
var id = 9929938;
var result = a2[id];
ready
Object by Key
var id = '9929938';
var result = o[id];
 
ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.