how to get GET variable's value in javascript?

Question

Possible Duplicate:
Get query string values in JavaScript

how can i get the get variable in javascript?

i want to pass it in jquery function.

function updateTabs(){

            //var number=$_GET['number']; how can i do this?
        alert(number);
        $( "#tabs" ).tabs({ selected: number });

    }

http://www.onlineaspect.com/2009/06/10/reading-get-variables-with-javascript/ — Aurimas Ličkus, Aug 21 '12 at 06:53

gion_13 · Accepted Answer · 2014-05-23T11:56:20.000

57

var $_GET = {};
if(document.location.toString().indexOf('?') !== -1) {
    var query = document.location
                   .toString()
                   // get the query string
                   .replace(/^.*?\?/, '')
                   // and remove any existing hash string (thanks, @vrijdenker)
                   .replace(/#.*$/, '')
                   .split('&');

    for(var i=0, l=query.length; i<l; i++) {
       var aux = decodeURIComponent(query[i]).split('=');
       $_GET[aux[0]] = aux[1];
    }
}
//get the 'index' query parameter
alert($_GET['index']);

edited May 23 '14 at 11:56

answered Aug 21 '12 at 06:55

gion_13

41,171
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1

I think `unescape()` needs to be run at line 9 in your code. Apart from that, this is a good solution. – Mathias Schwarz Aug 21 '12 at 07:31
2

Much better to use decodeURIComponent for both: parameter name and parameter value. – Aliaksei Nikuliak Jan 10 '14 at 19:20
Don't you mean `if (...index('?') !== -1)`? That's a big difference. – eatonphil Jan 25 '14 at 02:16
1

@phileaton you're right. I have no idea how did that slip and... how everyone else did the same until now. Thanks. – gion_13 Jan 26 '14 at 17:53
split('&'), =>split('&'); – Jens Hendar May 14 '14 at 11:13
+1 Aliaksei Nikuliak. This is much better: `var aux = query[i].split('='); $_GET[decodeURIComponent(aux[0])] = decodeURIComponent(aux[1]);` – tonystar Apr 24 '18 at 15:41
window.location is not set as expected when a JavaScript file is included in HTML using a SCRIPT tag. Any arguments are lost using this approach. – David Spector Jun 26 '21 at 15:19

Alexandre Khoury · Answer 2 · 2012-08-21T07:20:44.580

9

Write:

var $_GET=[];
window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi,function(a,name,value){$_GET[name]=value;});

Then $_GET['number']

edited Aug 21 '12 at 07:20

answered Aug 21 '12 at 06:53

Alexandre Khoury

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Don't create variables in JS without `var`. I'd recommend avoiding starting variable names with `$` in JS, it isn't typical. Don't use arrays to hold key/value pairs, use plain objects for that. – Quentin Aug 21 '12 at 06:58
1

@Quentin: The dollar-sign in front of variables is typically used as a convention for jquery objects. `var $rows = $("tr")` for example. – Jordan Arsenault Aug 21 '12 at 07:01
@JordanArseno — I never said it wasn't allowed by the standard, just that it wasn't *typical* for JavaScript. – Quentin Aug 21 '12 at 07:02

score -3 · Answer 3 · edited Jan 18 '19 at 03:37

-3

Try this

if (location.search != "")
{
    var x = location.search.substr(1).split(";")
    for (var i=0; i<x.length; i++)
    {
         var y = x[i].split("=");
         alert("Key '" + y[0] + "' has the content '" + y[1]+"'")
    }
}

edited Jan 18 '19 at 03:37

Bhargav Rao

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answered Aug 21 '12 at 07:00

Siva

481
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how to get GET variable's value in javascript?

3 Answers3

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