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Editorial Team
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Asked: 2026-05-27T17:19:34+00:00

What is the most ideal way of loading javascript files? Also, I want to

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What is the most ideal way of loading javascript files? Also, I want to make sure that order of the javascript files should be maintained. If I have

<script src="javascript1.js">
<script src="javascript2.js">

on my page, then javascript1.js should load before javascript2.js

Thanks.

EDIT: Thank you for your answers, but mine question is not only related with the order of js files. I want to load js files as quickly as possible without using any 3rd party js library. The solution which is similar can be found at http://www.nczonline.net/blog/2009/07/28/the-best-way-to-load-external-javascript/, but using this does not guarantee the order of the files for me, atleast.

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1 Answer

  1. Editorial Team

    As others have said, the scripts are loaded in order of placement on the page (unless they are wrapped in javascript to be loaded in later)

    Putting the script tags at the bottom of the page can assist with the loading process for both old and new browsers. Although some scripts might (like modenizer) need to be loaded earlier on in the process. A good example can be seen at http://html5boilerplate.com/ on the index code sample.

    Edit:

    Following your edit, there is this info which can help

    <script type="text/javascript">
  document.writeln("<script type='text/javascript' src='Script1.js'><" + "/script>");
  document.writeln("<script type='text/javascript' src='Script2.js'><" + "/script>");
</script>

    The full documentation on this can be read here (including crevets of other methods) http://blogs.msdn.com/b/kristoffer/archive/2006/12/22/loading-javascript-files-in-parallel.aspx

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