Angular vs. jQuery vs. Native vs. Native (New School)

JavaScript performance comparison

Revision 11 of this test case created

Info

Comparison study for how an MVC framework vs. jQuery vs. native code vs. querySelector performs while rendering a list populated from an array. We're doing a study trying to determine the best JavaScript approach to an app running on an ARM board, so we want to get a sense of what we're sacrificing in native js vs. newer native js vs. jquery-only vs. angular.js scenarios.

Preparation code

<!-- Jquery -->
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<h1>jQuery:</h1>
<div id="jq_test"></div>

<script type="text/javascript">
var jqEl = $('#jq_test');
var children = '';
var jqPush = function (data) {
  children += '<span>' + data + '</span>';
}
var jqRender = function () {
  jqEl.append(children);
  //jqEl.append('<span>' + data + '</span>');
}
var jqClear = function () {
  jqEl.empty();
  children = '';
// not sure if we need to do more to prevent memory leak - probably doesn't matter
}
</script>

<!-- Angular -->
<div ng-app>
  <h1>Angular:</h1>
  <div ng-controller="Ctrl" id="angList"><span ng-repeat="item in data">{{item}}</span></div>
</div>

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.1.3/angular.min.js"></script>

<script type="text/javascript">
  var Ctrl = function($scope){
    $scope.data = [];
  }
 
  angular.element(document).ready(function() {
    var angScope = $('#angList').scope();
   
    window.angularClear = function(){
      angScope.data.splice(0, angScope.data.length);
     // angScope.$digest();
    };
    window.angularPush = function(data){
      angScope.data.push(data);
     // angScope.$digest();
    };
    window.angularApply = function(data){
      angScope.$apply();
    };
  });
</script>

<!-- Native -->
<h1>Native (getElementById):</h1>
<div id="native_test"></div>

<script type="text/javascript">
var nativeEl = document.getElementById('native_test');
var nativeChildren = '';
var nativePush = function (data) {
  var el = '<span>' + data + '</span>';
  nativeChildren += el;
}
var nativeRender = function () {
  nativeEl.innerHTML = nativeChildren;
}
var nativeClear = function () {
  while (nativeEl.hasChildNodes()) {
    nativeEl.removeChild(nativeEl.lastChild);
  }
  nativeChildren = null;
  nativeChildren = '';
}


</script>


<!-- Native New -->
<h1>New Native (querySelector):</h1>
<div id="native_test_new"></div>

<script type="text/javascript">
var newNativeEl = document.querySelector('#native_test_new');
var newNativeChildren = '';
var newNativePush = function (data) {
  var el = '<span>' + data + '</span>';
  newNativeChildren += el;
}
var newNativeRender = function () {
  newNativeEl.innerHTML = newNativeChildren;
}
var newNativeClear = function () {
  while (newNativeEl.hasChildNodes()) {
    newNativeEl.removeChild(newNativeEl.lastChild);
  }
  newNativeChildren = null;
  newNativeChildren = '';
}


</script>
<script>
Benchmark.prototype.teardown = function() {
    jqClear();
    angularClear();
    angularApply();
    nativeClear();
    newNativeClear();
};
</script>

Preparation code output

jQuery:

Angular:

{{item}}

Native (getElementById):

New Native (querySelector):

Test runner

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Java applet disabled.

Testing in unknown unknown
Test Ops/sec
jQuery 2000

for (var i = 0; i < 2000; i++) {
  jqPush('jq-item');
}
jqRender();
 
pending…
Angular 2000

for (var i = 0; i < 2000; i++) {
  angularPush('ng-item');
}
angularApply();
pending…
Native 2000

for (var i = 0; i < 2000; i++) {
  nativePush('native-item');
}
nativeRender();
pending…
New Native 2000

for (var i = 0; i < 2000; i++) {
  newNativePush('native-item-new');
}
newNativeRender();
pending…

Compare results of other browsers

Revisions

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