Angular VS Knockout VS Ember vs CanJS

JavaScript performance comparison

Revision 328 of this test case created by chris

Info

Updated handlebars, Ember and CAN URLs.

Preparation code

<!-- Jquery -->
<script src="//code.jquery.com/jquery-1.9.1.min.js">
</script>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.1.3/angular.min.js">
</script>
<script src="//knockoutjs.com/downloads/knockout-2.2.1.js">
</script>
<script src="//builds.handlebarsjs.com.s3.amazonaws.com/handlebars.runtime-v1.3.0.js"></script>
<script src="//builds.emberjs.com/tags/v1.5.1/ember.min.js">
</script>
<script src="//canjs.com/release/2.1.1/can.jquery.js"></script>

<!-- CanJS -->
<div id="canapp">
        <h3>Can</h3>   
</div>
<script type="text/ejs" id="canEJS">
        <% items.each(function(item) { %>
          <span><%= item %></span>
        <% } ) %>
</script>

<!-- Knockout -->
<div id="koapp">
        <h3>KO</h3>    
  <span data-bind="foreach: items">
        <span data-bind="text: $data"></span>
  </span>
</div>

<!-- Ember -->
<div id="emapp">
        <h3>Ember</h3> 
  <script type="text/x-handlebars">
    <span>{{#each EMAPP.items}}<span>{{this}}</span>{{/each}}</span>
  </script>
</div>

<!-- Angular -->
<div ng-app="ANGAPP" id="angapp" ng-controller="Ctrl">
        <h3>Angular</h3>
        <span ng-repeat="item in items">{{item}}</span>
</div>

<script>
// Angular
angular.module('ANGAPP', [])
        .controller('Ctrl', function($scope) {
        $scope.items = [];
         window.ANG = {
            clear: function() {
                $scope.items.splice(0);
              $scope.$digest();
            },
            push: function(item) {
              $scope.items.push(item);
              $scope.$digest();
        }
        };
        });

// KO
var ko_items = ko.observableArray([]);
var ko_viewmodel = {items: ko_items};

ko.applyBindings(ko_viewmodel, document.getElementById('koapp'));

window.KO = {
  clear: function() {
    ko_items.splice(0);
  },
  push: function(data) {
    ko_items.push(data);
  }
}

//Ember
window.EMAPP = Ember.Application.create({
  rootElement: $('#emapp')
});
EMAPP.items = Ember.A();

window.EM = {
  clear: function() {
    EMAPP.items.clear();
  },
  push: function(item) {
    EMAPP.items.pushObject(item);
  }
}

//CanJS
var can_items = new can.List([]);
$('#canapp')
  .append(can.view('canEJS', {items: can_items}));
 
window.CAN = {
        clear: function () {
                can_items.splice(0);
        },
        push: function (item) {
                can_items.push(item);
        }
}
</script>
       

Preparation code output

Can

KO

Ember

Angular

{{item}}

Test runner

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Testing in unknown unknown
Test Ops/sec
Can
CAN.clear();
can.batch.start();
for (var i = 0; i < 50; i++) {
  CAN.push(i);
}
can.batch.stop();
pending…
Knockout
KO.clear();
for (var i = 0; i < 50; i++) {
  KO.push(i);
}
pending…
Ember
EM.clear();
for (var i = 0; i < 50; i++) {
  EM.push(i);
}
pending…
Angular
ANG.clear();
for (var i = 0; i < 50; i++) {
        ANG.push(i);
}
pending…

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