Array Performance (v66)

Revision 66 of this benchmark created on

Description

Manual array lookups vs. holey arrays.

Setup

var a1 = [];
    var a2 = [];
    var o = {};

for (var i = 0; i < 100; i++) {
  a1.push({id:i});
a2[i]={id:i};
o[i]={id:i};
}

Test runner

Ready to run.

Testing in
TestOps/sec
Manual Array Lookup
var id = 50;
for (var i = 0; i < a1.length; i++) {
  if (a1[i].id = id) { 
result = a1[i];
break;
}
}
 
ready
Holey Array by Index
var id = 50;
var result = a2[id];
ready
Object by Key
var id = 50;
var result = o[id];
 
ready

Revisions

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