Angular VS Knockout VS Ember VS React

JavaScript performance comparison

Revision 289 of this test case created

Info

Here comes React.

Preparation code

<!-- Jquery -->
<script src="http://code.jquery.com/jquery-1.7.2.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="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.14/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.$digest();
    };
    window.ANGpush = function(data){
      ang_scope.data.push(data + ang_scope.data.length);
      ang_scope.$digest();
    };
  });
</script>



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

<script src="http://knockoutjs.com/downloads/knockout-3.1.0.js"></script>

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

  ko.applyBindings(KOviewmodel, document.getElementById('koapp'));
</script>


<!-- Ember -->

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

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

<script src="http://builds.handlebarsjs.com.s3.amazonaws.com/handlebars-v1.3.0.js"></script>
<script src="http://builds.emberjs.com/canary/ember.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>


<!-- React -->
<script src="http://fb.me/react-0.9.0.min.js"></script>
<div id="react">
  React: <span id="reactMountNode"></span>
  <script>
    var ReactComponent = React.createClass({displayName: 'PerfTest',
      getInitialState: function() {
        return { data: [] };
      },
      render: function() {
        var res = [];
        for(var i = 0; i < this.state.data.length; i++) {
          res.push(React.DOM.span({ key: 'test' + i }, this.state.data[i]));
        }
        return React.DOM.span(null, res);
      }
    });

    var reactComp = ReactComponent();
    RClear = function() {
      reactComp.setState({data: []})
    };

    RPush = function(data) {
      var stateData = reactComp.state.data;
      stateData.push(data);
      reactComp.setState({data: stateData});
    }

    React.renderComponent(reactComp, $('#reactMountNode')[0]);
  </script>
</div>
 

Preparation code output

Angular: {{item}}
Knockout:
React:

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…
React 10
RClear();
for (var i = 0; i < 10; i++)
  RPush("ritem");
pending…
React 100
RClear();
for (var i = 0; i < 100; i++)
  RPush("ritem");
pending…

Compare results of other browsers

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