read parameter on js file

Question

Possible Duplicate:
Pass vars to JavaScript via the SRC attribute

May I know how to read get the p value on js file link like filename.js?p=value with local javascript in the js file? Any function to work like the $_GET['p'] in php? Thanks.

@BenLee it is a completely different question. One is pass by variable, this is pass by link's parameter. Pls read the question again Ben. Thanks. — davidlee, Sep 26 '11 at 08:34
@davidlee Look again at the non-accepted answers to that question: they show how to get query parameters from the URL used to load the script. — Richard, Sep 26 '11 at 08:38
Its possible. Check [This](http://www.dominopower.com/issues/issue200004/howto002) out — Anuj Verma, Sep 26 '11 at 08:25
This just tells you (in a very convoluted manner) how to use `window.location.search` to extract the query string from the current request url. But that is completely different than a query string *to* a javascript file. — Ben Lee, Sep 26 '11 at 08:28

score -1 · Answer 1 · answered Sep 26 '11 at 08:25

-1

try this:

var tmp = location.href, it;
if (q) it = tmp.substr(q + 1).split('&');
else it = '';
for (var i in it) {
    var t = it[i].split('=');
    if (t[0] == 'p') {
        //do something
        break;
    }
}

answered Sep 26 '11 at 08:25

Subdigger

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and what is wrong with this one? – Subdigger Sep 26 '11 at 08:33
Not the one to downvote, but let me explain what is wrong: `window.location` point to the location of the document that *loaded* the current script. OP wants to extract the query string of the script file *itself* (as loaded from the HTML document). – jensgram Sep 26 '11 at 08:54

score -1 · Answer 2 · answered Sep 26 '11 at 08:26

function _GET( name )
{
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null )
    return "";
  else
    return results[1];
}

This will do the equivalent in javascript.

read parameter on js file

2 Answers2