enzick-test

JavaScript performance comparison

Test case created

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<div id="thinger" class="test"></div>
<div id="gizmo" class="test"></div>
<style>
.test { width:1px;height:1px;overflow:hidden;}
</style>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
jQ in Loop
 
for (i = 0; i <= 100; i++) {
  $('#thinger').append(
    '<p><span class="thinger">i am thinger ' + i + '</span></p>'
  );
  $('#gizmo').append(
    '<p><span class="gizmo">i am gizmo ' + i + '</span></p>'
  );
}
 pending…
jQ outside Loop
 
var thinger = $('#thinger');
var gizmo = $('#gizmo');
for (i = 0; i <= 100; i++) {
  thinger.append(
    '<p><span class="thinger">i am thinger ' + i + '</span></p>'
  );
  gizmo.append(
    '<p><span class="gizmo">i am gizmo ' + i + '</span></p>'
  );
}
 pending…
String Replace
 
// async test
var thingerDom = [], gizmoDom = [],
    tpl = '<p><span class="%s">i am %s %i</span></p>',
    tplFn = function(str, i) {
      return tpl.replace(/%s/g, str).replace(/%i/g, i);
    },
    i;

for (i = 0; i <= 100; i++) {
  thingerDom.push(tplFn('thinger', i));
  gizmoDom.push(tplFn('gizmo', i));
}

$('#thinger').append(thingerDom.join(''));
$('#gizmo').append(gizmoDom.join(''));
 pending…
No Replace
 
var thingerDom = [], gizmoDom = [];

for (i = 0; i <= 100; i++) {
  thingerDom.push('<p><span class="gizmo">i am gizmo ' + i + '</span></p>');
  gizmoDom.push('<p><span class="thinger">i am thinger ' + i + '</span></p>');
}

$('#thinger').append(thingerDom.join(''));
$('#gizmo').append(gizmoDom.join(''));
 pending…

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