Angular forEach vs. Native for loop (v66)

Revision 66 of this benchmark created on

Preparation HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.0-beta.13/angular.js"></script>

Setup

var dataset, i, retObj = {}, stats = [{
        "window": "lifetime",
        "source": "DX",
        "spend": "1642.81",
        "ideal_spend": "2989.86",
        "pace": "43",
        "impressions": "224929",
        "actions": "189",
        "cpm": "3.90",
        "ideal_cpm": "2.81",
        "cpa": "25.82"
      }, {
        "window": "yesterday",
        "source": "DX",
        "spend": "1634.57",
        "ideal_spend": "3276.75",
        "pace": "24",
        "impressions": "24771",
        "actions": "41",
        "cpm": "2.08",
        "ideal_cpm": "3.14",
        "cpa": "16.00"
      }];

Test runner

Ready to run.

Testing in
TestOps/sec
Angular forEach
angular.forEach(stats, function(dataset) {
  if (dataset.window && dataset.window === 'lifetime') {
    delete dataset.window;
    retObj = dataset;
  }
});
ready
Native For --
for (i = stats.length - 1; i >= 0; i--) {
  dataset = stats[i];
  if (dataset.window && dataset.window === 'lifetime') {
    delete dataset.window;
    retObj = dataset;
    break;
  }
}
ready
Native For ++
for (i = 0; i < stats.length; i++) {
  dataset = stats[i];
  if (dataset.window && dataset.window === 'lifetime') {
    delete dataset.window;
    retObj = dataset;
    break;
  }
}
ready
Native While ++
var i = 0;
while (i < stats.length) {
  dataset = stats[i];
  if (dataset.window && dataset.window === 'lifetime') {
    delete dataset.window;
    retObj = dataset;
    break;
  }
  i++;
}
ready
Native While --
var i = stats.length;
while (--i >= 0) {
  dataset = stats[i];
  if (dataset.window && dataset.window === 'lifetime') {
    delete dataset.window;
    retObj = dataset;
    break;
  }
}
ready
For in
for (var i in stats)
  if (stats.hasOwnProperty(i)) {
    dataset = stats[i];
    if (dataset.window && dataset.window === 'lifetime') {
      delete dataset.window;
      retObj = dataset;
      break;
    }
  }
ready

Revisions

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