Angular foreach vs Underscore foreach vs native For Loop

JavaScript performance comparison

Revision 6 of this test case created by James Daily

Preparation code

 <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.7/angular.min.js"></script>

 <script src="http://underscorejs.org/underscore-min.js"></script>
    

Preparation code output

<script src="http://underscorejs.org/underscore-min.js"></script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
angular foreach
var arr = [];
for (var i = 0; i < 100000; i++) {
  arr.push(i)
}

var sum = 0;
angular.forEach(arr, function(i) {
  sum += i;
});
pending…
underscore foreach
var arr = [];
for (var i = 0; i < 100000; i++) {
  arr.push(i)
}

var sum = 0;
_.each(arr, function(i) {
  sum += i;
});
pending…
Native for loop
var arr = [];
for (var i = 0; i < 100000; i++) {
  arr.push(i)
}

var sum = 0;
for (var i = arr.length - 1; i >= 0; i--) {
  sum += 1;
};
pending…

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Revisions

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