Question

Duplicate of

Any value in double script tags?

Here’s a code snipped from UserVoice in order to stick their tab on my site (this isn’t specific to UserVoice however, I see this kind of thing all the time):

<script type="text/javascript">     var uservoiceJsHost = ("https:" == document.location.protocol) ? "https://uservoice.com" : "http://cdn.uservoice.com";     document.write(unescape("%3Cscript src='" + uservoiceJsHost + "/javascripts/widgets/tab.js' type='text/javascript'%3E%3C/script%3E")) </script> <script type="text/javascript">     UserVoice.Tab.show({         key: 'wikipediamaze',         host: 'wikipediamaze.uservoice.com',         forum: 'general',         alignment: 'right', /* 'left', 'right' */         background_color: '#94C97B',         text_color: 'white', /* 'white', 'black' */         hover_color: '#7AA1C5',         lang: 'en' /* 'en', 'de', 'nl', 'es', 'fr' */     }) </script> 

How this can’t all be jammed into one script tag and put into a separate file? Any time I try do it, it doesn’t work. Google ads does the same kind of thing. Why are there 2 separate script declarations?

Answer 1

Look at the code in the first script tag, it’s writing another script tag to the page. The code in the second script tag is using a function that is in the file that is loaded by the written script tag, so it has to be in a separate tag as the file is not loaded until the first code has been executed.

You could put the scripts in separate files, but you still need to load them using two separate script tags as the first one has to be executed before the second one loads.