performance frozen object (v43)

Revision 43 of this benchmark created by Ben Mosher on

Setup

o1 = [];
    o2 = [];
    o3 = [];
    
    for (var i = 0; i < 100; i++) {
      o1.push(i)
      o2.push(i)
      o3.push(i)
    }
    Object.freeze(o2);
    Object.seal(o3);
    
    function doAnything(x) { }

Test runner

Ready to run.

Testing in
TestOps/sec
non-frozen object
for(var key in o1) { doAnything(o1[key]) }
ready
frozen object
for(var key in o2) { doAnything(o2[key]) }
ready
sealed object
for(var key in o3) { doAnything(o3[key]) }
ready
index for loop (frozen)
for (var i = 0; i < o2.length; i++) {
  doAnything(o2[i]);
}
ready
index for loop
for (var i = 0; i < o1.length; i++) {
  doAnything(o1[i]);
}
ready

Revisions

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