Solved

get url parameter value in javascript

Posted on 2013-11-18
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Last Modified: 2013-12-17
HI,

I have a URL which has the parameter "ID"

how can i get the value of the ID in javascript

please help

Thanks

R8VI
0
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Question by:R8VI
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12 Comments
 
LVL 33

Accepted Solution

by:
Big Monty earned 500 total points
ID: 39657705
try this:

var QueryString = function () {
  // This function is anonymous, is executed immediately and 
  // the return value is assigned to QueryString!
  var query_string = {};
  var query = window.location.search.substring(1);
  var vars = query.split("&");
  for (var i=0;i<vars.length;i++) {
    var pair = vars[i].split("=");
    	// If first entry with this name
    if (typeof query_string[pair[0]] === "undefined") {
      query_string[pair[0]] = pair[1];
    	// If second entry with this name
    } else if (typeof query_string[pair[0]] === "string") {
      var arr = [ query_string[pair[0]], pair[1] ];
      query_string[pair[0]] = arr;
    	// If third or later entry with this name
    } else {
      query_string[pair[0]].push(pair[1]);
    }
  } 
    return query_string;
} ();

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You can then access QueryString.id
0
 

Author Comment

by:R8VI
ID: 39657796
Hi,

Thanks for this but where do I substitute the ID in your code

R8vi
0
 
LVL 33

Expert Comment

by:Big Monty
ID: 39657803
wherever you're looking to use the ID value, such like this:

   var idParam = QueryString.id;

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Author Comment

by:R8VI
ID: 39659169
I am sorry could you please explain a bit further
0
 
LVL 33

Expert Comment

by:Big Monty
ID: 39659184
Ultimately what are you trying to accomplish with the url perameter?
0
 
LVL 9

Expert Comment

by:Sar1973
ID: 39659219
Try:
var id = document.getElementById("URL").getAttribute("id");
0
 
LVL 33

Expert Comment

by:Big Monty
ID: 39659390
doesn't work in Chrome...
0
 

Author Comment

by:R8VI
ID: 39659658
Hi,

So I have a URL like so

http://localhost:49768/Solution/IframePage.aspx?Name=Ellis&URL=http://www.test.com

I would like to get the Value of "URL" which in this case would be http://www.test.com
 and store it in a variable

Thanks

R8VI
0
 
LVL 33

Expert Comment

by:Big Monty
ID: 39659669
ok, so using my example above, just create a variable:

var myURL;

then assign it like:

myURL = QueryString.URL;

the function I gave earlier runs upon page load, and it basically creates an "object" with properties that are the url parameters
0
 
LVL 9

Expert Comment

by:Sar1973
ID: 39662273
You could also toggle the string with JS string functions (see http://w3schools.com/js/js_obj_string.asp) and extract the URL.
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