How can I read a query string from js

Question

Possible Duplicate:
Get query string values in JavaScript

I need a function to read query string value?

If I give key then the method should return the corresponding value.

Please help..

Add some example code of what you have [tried](http://mattgemmell.com/2008/12/08/what-have-you-tried/)! — ChiefTwoPencils, Aug 01 '12 at 11:09
This might be a solution. http://stackoverflow.com/a/647272/999312 — Robin Drexler, Aug 01 '12 at 11:10

score 1 · Accepted Answer · answered Aug 01 '12 at 11:13

Try this will help

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

score 0 · Answer 2 · answered Aug 01 '12 at 11:09

0

Ive allways used the following and it seems to work

function urlParam(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];  
}

You just need to call urlParam("yourName"); and it will return your value;

answered Aug 01 '12 at 11:09

Dominic Green

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Looks disturbingly close to this http://stackoverflow.com/a/901144/995876 – Esailija Aug 01 '12 at 11:11
Yer its commonly used every where, ive been using it for years but im sure I got it from a forum or something at some point, im for sure not clever enough to write it myself ;) – Dominic Green Aug 01 '12 at 11:12

score 0 · Answer 3 · answered Aug 01 '12 at 11:11

yAccess desired query using getQuery('mykey');

function getQuery( key) {
        var hu = window.location.search.substring(1), gy = hu.split("&"), val;
        keyValue = {};
        for ( var i = 0; i < gy.length; i++) {
            val = gy[i].split("=");
            keyValue[val[0]] = val[1];
        }
        return keyValue[key];
    }

How can I read a query string from js

3 Answers3