DOM vs innerHTML based Templating

JavaScript performance comparison

Revision 3 of this test case created by Jeremy Ashkenas

Info

A brief comparison of some JavaScript templating engines on a short template: 7 DOM nodes ... 7 interpolated values.

Preparation code

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

<script src="http://documentcloud.github.com/underscore/underscore.js"></script>

<script src="http://github.com/janl/mustache.js/raw/master/mustache.js"></script>

<script src="http://gist.github.com/raw/550881/29bb186167079c0b33ab6e9d50d779f37860cfa4/micro.js"></script>

<script src="http://github.com/creationix/haml-js/raw/master/lib/haml.js"></script>

<script src="http://gist.github.com/raw/550723/12d176698628e30a1df398c7ac7aea93924e1294/jade.js"></script>

<script src="http://github.com/hij1nx/JUP/raw/master/js/jup.js"></script>

<script>
  window.mustacheTemplate = "<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>";
 
  window.micro = "<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.underscoreTemplate = _.template(micro);
 
  window.resigTemplate = tmpl(micro);
 
  window.sharedVariables = {
   header: "Header",
   header2: "Header2",
   header3: "Header3",
   header4: "Header4",
   header5: "Header5",
   header6: "Header6",
   list: ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10']
  };
 
  window.jupTemplate = ['div', ['h1',
  {
   'class': 'header'
  }, "{{header}}"],
   ['h2',
   {
    'class': 'header2'
   }, "{{header2}}"],
   ['h3',
   {
    'class': 'header3'
   }, "{{header3}}"],
   ['h4',
   {
    'class': 'header4'
   }, "{{header4}}"],
   ['h5',
   {
    'class': 'header5'
   }, "{{header5}}"],
   ['h6',
   {
    'class': 'header6'
   }, "{{header6}}"],
   ['ul',
   {
    'class': 'list'
   }, ['li',
   {
    'class': 'item'
   }, '{{list}}'],
    ['li',
    {
     'class': 'item'
    }, '{{list}}'],
    ['li',
    {
     'class': 'item'
    }, '{{list}}'],
    ['li',
    {
     'class': 'item'
    }, '{{list}}'],
    ['li',
    {
     'class': 'item'
    }, '{{list}}'],
    ['li',
    {
     'class': 'item'
    }, '{{list}}'],
    ['li',
    {
     'class': 'item'
    }, '{{list}}'],
    ['li',
    {
     'class': 'item'
    }, '{{list}}'],
    ['li',
    {
     'class': 'item'
    }, '{{list}}'],
    ['li',
    {
     'class': 'item}'
    }, '{{list}}']
   ]
  ];
 
  window.jadeTemplate = "div\n  h1.header= header\n  h2.header2= header2\n  h3.header3= header3\n  h4.header4= header4\n  h5.header5= header5\n  h6.header6= header6\n  ul.list\n    - each item in list\n      li.item= item";
 
  window.hamlTemplate = Haml("%div\n  %h1.header= header\n  %h2.header2= header2\n  %h3.header3= header3\n  %h4.header4= header4\n  %h5.header5= header5\n  %h6.header6= header6\n  %ul.list\n    :each item in list\n      %li.item= item");
 
  jade.render(jadeTemplate, {
   locals: sharedVariables,
   filename: 'test.js',
   cache: true
  });
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
Mustache.js Template
Mustache.to_html(mustacheTemplate, sharedVariables);
pending…
Resig Micro-Templating.
resigTemplate(sharedVariables);
pending…
Creationix's Haml-js Template
hamlTemplate(sharedVariables);
pending…
Jade Template
jade.render(jadeTemplate, {
 locals: sharedVariables,
 filename: 'test.js',
 cache: true
});
pending…
JUP Template
JUP.html([sharedVariables], jupTemplate);
pending…
Underscore.js Template
underscoreTemplate(sharedVariables);
pending…

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Revisions

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2 comments

hij1nx commented :

JUP is not really comparable here. While the others may be faster, JUP must obviously be slower because its a series of nested arrays and objects. The purpose of JUP is to avoid having large strings of HTML inside your JavaScript files. It’s the separation of concerns principal at work. When used judiciously, JUP performs fine. For hardcore performance scenarios you may want to look at simpler techniques with less sugar such as underscore.js template.

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