how read HTTP GET variables in javascripts? [duplicate]

Question

I wanna know is this possible I pass get parameters for a javascript file and use them in codes? I have this in html:

<script type="text/javascript" src="/javafile.js?q=somtext"></script>

know how I use this "q" parameter in my script codes? is this possible?

yes it seems it is dublicated :P

IVIR3zaM
– IVIR3zaM

2012-02-15 14:15:29 +00:00
Commented Feb 15, 2012 at 14:15 — IVIR3zaM
– IVIR3zaM, Commented Feb 15, 2012 at 14:15

Quentin · Accepted Answer · 2012-02-15 14:04:53Z

4

You can either:

Generate the JS dynamically with a server side language and read the query string there
Assume that the JS is the last <script> element so far in the DOM and parse document.scripts[document.scripts.length - 1].src

Note that if the script element has been added dynamically (i.e. with JS), it might not be the last script in the DOM.

answered Feb 15, 2012 at 14:04

Quentin

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2 Comments

IVIR3zaM Over a year ago

thanks a lot. I seen in firebug that every javascript file in request send with a "_" parameter that have a a time-stamp. what do this parameter?

Quentin Over a year ago

@IVIR3zaM — That isn't standard. Something is probably adding it as a cache buster.

Arend · Accepted Answer · 2012-02-15 14:08:24Z

1

I think Quentin's suggestion is the answer to your question.

I usually use an alternative way for this, which may also help you:

Make sure that your javascript is written in a library form, and make sure that you have an instantiate method/function inside your javascript that allows you to pass parameters (or better, as an object)

// on dom load:
library.init({ var1: value1, var2: value2});

This allows you also to load your javascript in a different way, and allows for cleaner code.

answered Feb 15, 2012 at 14:08

Arend

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Comments

Lennart · Accepted Answer · 2012-02-15 14:07:42Z

0

Or you can use option 3: use a library that has this functionality, e.g. MooTools: http://mootools.net/docs/more/Types/String.QueryString

answered Feb 15, 2012 at 14:07

Lennart

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1 Comment

pimvdb Over a year ago

It looks like it's just an utility function for string -> object conversion; you'd still have to obtain the actual path with the values first.

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