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    <p>After my studing around this toppics, I updated for who visit to this question later.</p> <p>For most of the browsers (IE9, Firefox, Chrome, Safari, ...) except Opera (12.16), dynamic script injection into DOM will load script asynchronously.</p> <p>So this code:</p> <pre><code>function loadScript(src) { var script = document.createElement('script'); script.type = 'text/javascript'; script.src = src; } loadScript('script1.js'); loadScript('script2.js'); loadScript('script3.js'); </code></pre> <p>is almost equivalent to:</p> <pre><code>&lt;script src="script1.js" async&gt;&lt;/script&gt; &lt;script src="script2.js" async&gt;&lt;/script&gt; &lt;script src="script3.js" async&gt;&lt;/script&gt; </code></pre> <p>But if the <code>async</code> flag is set to <code>false</code> explicitly like:</p> <pre><code>function loadScript(src) { var script = document.createElement('script'); script.type = 'text/javascript'; script.src = src; script.async = false; } </code></pre> <p>then the scripts will be loaded in order synchronously.</p> <p>So the very short answer for this question is that <code>g.async = false</code>, but still I also recommend to use some framework and that is the best answer.</p> <p>Try this: <a href="http://jsfiddle.net/DRCzN/" rel="nofollow">http://jsfiddle.net/DRCzN/</a></p> <p>~~~~ original answer ~~~~~~</p> <p>Dynamic script insertion (<code>createElement('script')</code> then <code>insertBefore()</code> or even <code>insertAfter()</code>) will load each script asynchronously.</p> <p>So with your current script, the arrival of those script to the browser heavily depends on the network status.</p> <p>If you want keep the dependency of these scripts, you can use some script loader such as <a href="https://github.com/ded/script.js/" rel="nofollow">$script</a>, head.js or Require.js.</p> <p>EDIT: I like Jonathan's solution, and here is a little improvement using <code>$.getScript()</code>.</p> <h3>if script.js and form.js are independent of each other</h3> <pre><code>&lt;script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; (function(scripts) { var protocol = ('https:' == document.location.protocol ? 'https://ssl.' : 'http://www.'); $.each(scripts, function(i, s) { $.getScript(protocol + s); }); })(['.example.com/js/script.js', '.example.com/js/form.js']); &lt;/script&gt; </code></pre> <h3>if form.js depneds on script.js</h3> <pre><code>&lt;script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; (function(scripts) { var protocol = ('https:' == document.location.protocol ? 'https://ssl.' : 'http://www.'); $.getScript(protocol + scripts[0], function() { $.getScript(protocol + scripts[1]); }); })(['.example.com/js/script.js', '.example.com/js/form.js']); &lt;/script&gt; </code></pre>
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    1. POScript not getting loaded in order
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    1. COI agree with your answer. Does that mean "g.async=true" can solve this issue? But when tried, it didn't worked?
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      1. USGanesh Babu
    2. CONo. `g.async=true` doesn't solve your problem. Almost all browsers don't need async flag to load script asynchronously with dynamic insertion except old firefox. By the way, how about using `document.write()` ?
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    3. COYou are correct. Require.js solved the issue. But it's working crazy. When I load the page, it isn't working.when I type the url and press enter it's working. Does that deals with asynchronous script loading? If so how can then we solve this??
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