jQuery: How to get parameters of a url?

Question

New to jQuery and I'm having trouble getting the parameters of a url that my server generates. I have a url like this:

<span class="popuptest"><a href="www.example.com/test?param1=1&param2=2">find param</a></span>

my jquery function looks like so:

$(function() {
  $('.popuptest a').live('click', function(event) {
  $.extend({
    getUrlVars: function(){
      var vars = [], hash;
      var hashes = this.href.slice(this.href.indexOf('?') + 1).split('&');
      for(var i = 0; i < hashes.length; i++)
      {
        hash = hashes[i].split('=');
        vars.push(hash[0]);
        vars[hash[0]] = hash[1];
      }
      return vars;
    },
    getUrlVar: function(name){
      return $.getUrlVars()[name];
    }
  });
  var second = getUrlVars()["param2"];
  alert(second);
  return false;
  });
});

clicking on the link should show me "2", however I get nothing... any help for a jQuery noob? thanks in advance!

I found this on a blog: http://jquery-howto.blogspot.com/2009/09/get-url-parameters-values-with-jquery.html

Answer 1

You don't need jQuery for that purpose you can use the pure JavaScript:

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

and you can call the function in this way..getParameterByName(param1,href of your link)

DEMO