Render Template From DOM Select vs Cache

Benchmark created by Derick Bailey on

Description

This test was spawned by some discussion in a StackOverflow thread:

http://stackoverflow.com/questions/9833312/how-do-i-properly-store-a-javascript-template-so-that-it-isnt-instantiated-mul

The purpose is to test the speed of rendering an underscore.js template when selecting the template from the DOM every time, vs selecting it once and re-rendering the cached template every time.

Preparation HTML

<script id="test-template" type="text/template">
  <p>
    this is <div class="foo">some html</div>
  </p>
  <ul>
    <li>with data
    <li>and items
    <li>etc
  </ul>
</script>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script src="//documentcloud.github.com/underscore/underscore-min.js"></script>
<div id="html-output-goes-here"></div>

Setup

this.cachedItem = $("#test-template");
    this.cachedTemplate = _.template(this.cachedItem.html());
    this.output = $("#html-output-goes-here");

Teardown


    delete this.cachedItem;
    delete this.cachedTemplate;

Test runner

Ready to run.

Testing in
TestOps/sec
Cached
var html = this.cachedTemplate();
this.output.html(html);
ready
Non-Cached
var uncachedItem = $("#test-template");
var uncachedTemplate = _.template(uncachedItem.html());
var html = uncachedTemplate();
this.output.html(html);
ready

Revisions

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