Sencha Touch 2 template vs manual

JavaScript performance comparison

Revision 6 of this test case created

Info

Testing the template apply vs manual loop. Both return the text string containing data to be inserted.

Preparation code

<script src="//extjs.cachefly.net/touch/sencha-touch-2.1.0/sencha-touch-all.js">
</script>
<script>
Benchmark.prototype.setup = function() {
    function getData(){
    d = [];
    for (var i = 0; i < 0; i++) {
      d.push({
        id: 'id-' + i,
        title: 'Best title ever',
        content: 'This is the content text',
        img: {
          url: 'http://www.img.com/img.png',
          width: 50,
          height: 50
        }
      });
    }
    return d;
    }
   
    var tmpl_1 = ['<ul>', '<tpl for=".">', '<li id="{id}">', '<h1 class="title">{title}</h1>', '<div class="image" style="background-image: url({img.url}); background-size: {img.height}px {img.width}px;"></div>', '<div class="text">{content}</div>', '</li>', '</tpl>', '</ul>'];
   
    var xtpl = Ext.create('Ext.XTemplate', tmpl_1, {
      compiled: true
    });
   
    var tmpl_2= ['<li id="','1','"><h1 class="title">','3','</h1><div class="image" style="background-image: url(','5','); background-size: ','7','px ','9','px;"></div><div class="text">','11','</div></li>'];
     
   
   
    function createUL(data) {
      var buffer = [],j = 0;
      buffer[j++] = '<ul>';
      for (var i = 0; i < data.length; i++) {
        tmpl_2[1] = data[i].id;
        tmpl_2[3] = data[i].title;
        tmpl_2[5] = data[i].img.url;
        tmpl_2[7] = data[i].img.height;
        tmpl_2[9] = data[i].img.width;
        tmpl_2[11] = data[i].content;
        buffer[j++] = tmpl_2.join("");
      }
      buffer[j++] = '</ul>';
      return buffer.join("");
    }
};
</script>

Test runner

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Testing in unknown unknown
Test Ops/sec
Sencha Touch 2
var res = xtpl.apply(getData());
pending…
Manual
var res = createUL(getData());
pending…

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