Angular forEach vs. Native for loop vs. Lodash (v128)

Revision 128 of this benchmark created on

Description

Updated LoDash

Preparation HTML

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.18/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.8.0/lodash.js"></script>

Setup

var __ = {
      forEachRight: function(obj, callback) {
        for (i = obj.length - 1; i >= 0; i--) {
          callback(obj[i]);
        }
      }
    };
    
    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 Right
for (i = stats.length - 1; i >= 0; i--) {
  dataset = stats[i];
  if (dataset.window && dataset.window === 'lifetime') {
    delete dataset.window;
    retObj = dataset;
  }
}
ready
Lodash forEachRight
_.forEachRight(stats, function(dataset) {
  if (dataset.window && dataset.window === 'lifetime') {
    delete dataset.window;
    retObj = dataset;
  }
});
ready
Custom
__.forEachRight(stats, function(dataset) {
  if (dataset.window && dataset.window === 'lifetime') {
    delete dataset.window;
    retObj = dataset;
  }
});
ready
ES5 forEach
stats.forEach(function(dataset) {
  if (dataset.window && dataset.window === 'lifetime') {
    delete dataset.window;
    retObj = dataset;
  }
});
ready
Lodash forEachLeft
_.forEach(stats, function(dataset) {
  if (dataset.window && dataset.window === 'lifetime') {
    delete dataset.window;
    retObj = dataset;
  }
});
ready
Native For Left
for (i = 0; i < stats.length; i++) {
  var dataset = stats[i];
  if (dataset.window && dataset.window === 'lifetime') {
    delete dataset.window;
    retObj = dataset;
  }
}
ready
for loop, super-cached i and stats length, simpler!
var i, len = stats.length;
for (i = 0; i < len; i++) {
  var d = stats[i],
    dw = d.window || 0;
  if (dw && dw === 'lifetime') {
    delete dw;
    retObj = d;
  }
}
ready
for of
for (dataset of stats) {
  if (dataset.window && dataset.window === 'lifetime') {
    delete dataset.window;
    retObj = dataset;
  }
}
ready

Revisions

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