JavaScript template language shootoff

JavaScript performance comparison

Revision 591 of this test case created

Info

A limited comparison of some popular JavaScript templating engines on a short template: 6 header tags, and 10 list items. Compared templating engines:

Preparation code

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<script src="https://raw.github.com/documentcloud/underscore/master/underscore.js">
</script>
<script src="http://cloud.github.com/downloads/wycats/handlebars.js/handlebars-1.0.rc.1.js">
</script>
<script src="http://jashkenas.github.com/coffee-script/extras/coffee-script.js">
</script>
<script src="https://github.com/olado/doT/raw/master/doT.js">
</script>
<script type="text/javascript" src="https://raw.github.com/akdubya/dustjs/master/dist/dust-full-0.3.0.js">
</script>
<script src="http://embeddedjavascript.googlecode.com/files/ejs_production.js">
</script>
<!-- elements to write to -->
<ul>
<li id="template1" ></li>
<li id="template2" ></li>
<li id="template3" ></li>
<li id="template4" ></li>
<li id="template5" ></li>
<li id="template6" ></li>
<li id="template7" ></li>
<li id="template8" ></li>
</ul>

<!--External Template Definitions-->
<script type="text/x-kendo-template" id="kendoUIextTemplate">
<div>
<h1 class='header'>#= data.header #</h1>
<h2 class='header2'>#= data.header2 #</h2>
<h3 class='header3'>#= data.header3 #</h3>
<h4 class='header4'>#= data.header4 #</h4>
<h5 class='header5'>#= data.header5 #</h5>
<h6 class='header6'>#= data.header6 #</h6>
<ul class='list'>
   # for (var i = 0, l = data.list.length; i < l; i++) { #
   <li class='item'>#= data.list[i] #</li>
   # } #
</ul>
</div>
</script>
<script>
  window.sharedVariables = {
    header: "Header",
    header2: "Header2",
    header3: "Header3",
    header4: "Header4",
    header5: "Header5",
    header6: "Header6",
    list: ['1000000000', '2', '3', '4', '5', '6', '7', '8', '9', '10']
  };
  window.baseHtml = "<div><h1 class='header'></h1><h2 class='header2'></h2><h3 class='header3'></h3><h4 class='header4'></h4><h5 class='header5'></h5><h6 class='header6'></h6><ul class='list'><li class='item'></li></ul></div>";


  window.handlebarsTemplate = Handlebars.compile("<div><h1 class='header'>{{header}}</h1><h2 class='header2'>{{header2}}</h2><h3 class='header3'>{{header3}}</h3><h4 class='header4'>{{header4}}</h4><h5 class='header5'>{{header5}}</h5><h6 class='header6'>{{header6}}</h6><ul class='list'>{{#each list}}<li class='item'>{{this}}</li>{{/each}}</ul></div>");


  window.underscoreTemplate = _.template("<div><h1 class='header'><%= header %></h1><h2 class='header2'><%= header2 %></h2><h3 class='header3'><%= header3 %></h3><h4 class='header4'><%= header4 %></h4><h5 class='header5'><%= header5 %></h5><h6 class='header6'><%= header6 %></h6><ul class='list'><% for (var i = 0, l = list.length; i < l; i++) { %><li class='item'><%= list[i] %></li><% } %></ul></div>");

  window.underscoreTemplateNoWith = _.template("<div><h1 class='header'><%= data.header %></h1><h2 class='header2'><%= data.header2 %></h2><h3 class='header3'><%= data.header3 %></h3><h4 class='header4'><%= data.header4 %></h4><h5 class='header5'><%= data.header5 %></h5><h6 class='header6'><%= data.header6 %></h6><ul class='list'><% for (var i = 0, l = data.list.length; i < l; i++) { %><li class='item'><%= data.list[i] %></li><% } %></ul></div>", null, {
    variable: 'data'
  });

  window.ejs = new EJS({
    text: "<div><h1 class='header'><%= header %></h1><h2 class='header2'><%= header2 %></h2><h3 class='header3'><%= header3 %></h3><h4 class='header4'><%= header4 %></h4><h5 class='header5'><%= header5 %></h5><h6 class='header6'><%= header6 %></h6><ul class='list'><% for (var i = 0, l = list.length; i < l; i++) { %><li class='item'><%= list[i] %></li><% } %></ul></div>"
  });

  window.doTtemplate = doT.template("<div><h1 class='header'>{{=it.header}}</h1><h2 class='header2'>{{=it.header2}}</h2><h3 class='header3'>{{=it.header3}}</h3><h4 class='header4'>{{=it.header4}}</h4><h5 class='header5'>{{=it.header5}}</h5><h6 class='header6'>{{=it.header6}}</h6><ul class='list'>{{for(var i = 0,l=it.list.length;i<l;i++) { }}<li class='item'>{{=it.list[i]}}</li>{{ } }}</ul></div>");

  //Resig Template Function (modified to support ')

  function tmpl(str) {
    var strFunc = "var p=[];" + "with(obj){p.push('" +

    str.replace(/[\r\t\n]/g, " ").replace(/'(?=[^#]*#>)/g, "\t").split("'").join("\\'").split("\t").join("'").replace(/<#=(.+?)#>/g, "',$1,'").split("<#").join("');").split("#>").join("p.push('") + "');}return p.join('');";

    return new Function("obj", strFunc);
  }

  window.resig = tmpl("<div><h1 class='header'><#= header #></h1><h2 class='header2'><#= header2 #></h2><h3 class='header3'><#= header3 #></h3><h4 class='header4'><#= header4 #></h4><h5 class='header5'><#= header5 #></h5><h6 class='header6'><#= header6 #></h6><ul class='list'><# for (var i = 0, l = list.length; i < l; i++) { #><li class='item'><#= list[i] #></li><# } #></ul></div>");

  //Resig modified template function (no "with" block)

  function tmpl2(str) {
    var strFunc = "var p=[];" + "p.push('" +

    str.replace(/[\r\t\n]/g, " ").replace(/'(?=[^#]*#>)/g, "\t").split("'").join("\\'").split("\t").join("'").replace(/<#=(.+?)#>/g, "',$1,'").split("<#").join("');").split("#>").join("p.push('") + "');return p.join('');";

    return new Function("data", strFunc);
  }

  window.resig2 = tmpl2("<div><h1 class='header'><#= data.header #></h1><h2 class='header2'><#= data.header2 #></h2><h3 class='header3'><#= data.header3 #></h3><h4 class='header4'><#= data.header4 #></h4><h5 class='header5'><#= data.header5 #></h5><h6 class='header6'><#= data.header6 #></h6><ul class='list'><# for (var i = 0, l = data.list.length; i < l; i++) { #><li class='item'><#= data.list[i] #></li><# } #></ul></div>");



  window.dusttemplate = dust.compileFn("<div><h1 class='header'>{header}</h1><h2 class='header2'>{header2}</h2><h3 class='header3'>{header3}</h3><h4 class='header4'>{header4}</h4><h5 class='header5'>{header5}</h5><h6 class='header6'>{header6}</h6><ul class='list'>{#list}<li class='item'>{.}</li>{/list}</ul></div>");

</script>

 

Preparation code output

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Testing in unknown unknown
Test Ops/sec
doT.js
$('#template1').html(doTtemplate(sharedVariables));
++sharedVariables.list[0];
 
pending…
Handlebars.js
$('#template2').html(handlebarsTemplate(sharedVariables));
++sharedVariables.list[0];
 
pending…
Underscore.js Template
$('#template3').html(underscoreTemplate(sharedVariables));
++sharedVariables.list[0];
 
pending…
Resig Micro Templates (modified)
$('#template4').html(resig(sharedVariables));
++sharedVariables.list[0];
 
pending…
Resig Micro Templates (No "with" block)
$('#template5').html(resig2(sharedVariables));
++sharedVariables.list[0];
 
pending…
Underscore.js Template (No "with")
$('#template6').html(underscoreTemplateNoWith(sharedVariables));
++sharedVariables.list[0];
 
pending…
Dust.js template
// async test
dusttemplate(sharedVariables, function() {
 $('#template7').html(this.out);
 ++sharedVariables.list[0];
 deferred.resolve()
});
 
pending…
ejs
$('#template8').html(ejs.render(sharedVariables));
++sharedVariables.list[0];

 
pending…

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