Angular VS Knockout VS Ember

JavaScript performance comparison

Revision 33 of this test case created by Steve Commisso

Info

Updated previous version with most recent versions of each library (as of 10/11/12)

Fix: Adds missing handlebars script

Preparation code

<!-- Jquery -->
<script src="http://code.jquery.com/jquery-1.8.2.min.js"></script>

<!-- Angular -->
<div ng-app>
  Angular:
  <span ng-controller="Ctrl" id="angList"><span ng-repeat="item in data">{{item}}</span></span>
</div>

<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.0.2/angular.min.js"></script>

<script>
  var Ctrl = function($scope){
    $scope.data = [];
  }
 
  angular.element(document).ready(function() {
    var ang_scope = $('#angList').scope();
   
    window.ANGclear = function(){
      ang_scope.data.splice(0, ang_scope.data.length);
      ang_scope.$digest();
    };
    window.ANGpush = function(data){
      ang_scope.data.push(data);
      ang_scope.$digest();
    };
  });
</script>



<!-- Knockout -->
<div id="koapp">
  Knockout:
  <span data-bind="foreach: data"><span data-bind="text: $data"></span></span>
</div>

<script src="http://cdnjs.cloudflare.com/ajax/libs/knockout/2.1.0/knockout-min.js"></script>

<script>
  var KOData = ko.observableArray();
  var KOviewmodel = {data: KOData};
 
  ko.applyBindings(KOviewmodel, document.getElementById('koapp'));
  var KOclear = function (){
    KOData.splice(0, KOData().length);
  };
  var KOpush = function (data){
    KOData.push(data);
  };
</script>


<!-- Ember -->

<div id="emapp">
  Ember:
  <script type="text/x-handlebars">
    <span>
      {{#each EMapp.data}}<span>{{this}}</span>{{/each}}
    </span>
  </script>
</div>

<script>
  var ENV = {EXTEND_PROTOTYPES: false};
</script>

<script src="//cdnjs.cloudflare.com/ajax/libs/handlebars.js/1.0.0.beta6/handlebars.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/ember.js/1.0.pre/ember-1.0.pre.min.js"></script>

<script>
  EMapp = Ember.Application.create({
    rootElement: $('#emapp')
  });
  EMapp.data = Ember.A();
 
  EMclear = function () {
    EMapp.data.clear();
  };
  EMpush = function (data) {
    EMapp.data.pushObject(data);
  };
</script>
 

Preparation code output

Angular: {{item}}
Knockout:
Ember:

Test runner

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Testing in unknown unknown
Test Ops/sec
Angular 10
ANGclear();
for (var i = 0; i < 10; i++)
  ANGpush("ngitem");
pending…
Knockout 10
KOclear();
for (var i = 0; i < 10; i++)
  KOpush("koitem");
pending…
Ember 10
EMclear();
for (var i = 0; i < 10; i++)
  EMpush("emitem");
pending…
Angular 100
ANGclear();
for (var i = 0; i < 100; i++)
  ANGpush("ngitem");
pending…
Knockout 100
KOclear();
for (var i = 0; i < 100; i++)
  KOpush("koitem");
pending…
Ember 100
EMclear();
for (var i = 0; i < 100; i++)
  EMpush("emitem");
pending…

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