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I have seen on some websites they have one script tag but call multiple JS file e.g. <script src="script1.js,script2.js,script3.js"></script>

How do I do this? (Looking for both PHP and ASP.NET)

I have done a search on Google but struggled to find anything relevant.

Thanks

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    Any particular reason why you want to do that? Commented Jun 6, 2011 at 15:32
  • Maybe this might help stackoverflow.com/questions/4878571/… Commented Jun 6, 2011 at 15:34

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You need to write a server-side script that parses the script names from the URL or query string, and sends a single response with the contents of all of the scripts.

Make sure to validate the script names to prevent attackers from reading arbitrary files.

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That loads a single JS file. The URLs just has multiple things that look like filenames in it.

There is a strong probability that the single JS file is built from multiple files by a server side script. If so, that is just a simple matter of…

  1. parsing the filenames from the URL (split on commas)
  2. sanity checking them
  3. concatenating the files into the response

(and giving it a suitable Content-Type header).

It is inefficient to do that for every hit though, so make sure you implement sane caching. Both with HTTP response headers and on your server.

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I use:

http://rakaz.nl/code/combine

Just set up something in your .htaccess that points requests to js and css to this file. It handles caching etc

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