Question

I have a url which could be www.website.com/order/?pg3=2
or www.website.com/orderstatus/?pg2=

There could be several combinations and numbers at the end, all i want to really do is check is pg2 or pg3 are empty?

Im not sure how to actually access the post variables in the url, sometimes the url might not have the variables at all tho ?

$(document).ready(function () {

  if(pg2 != ''){
    //Does a click
    $("#add2").click();
  }
  if(p3 != ''){
    $("#add3").click();
  }

});

how do i check if the pg2 is empty in javascript on the page load?

Answer 1

You can parse querystring with plain old js and then check if particular param populated
The function below will give you a params array

  var queryString = window.location.href.replace(/^[^\?]+\??/,'');

var params = parseQuery( queryString );
function parseQuery ( query ) {
       var Params = new Object ();
       if ( ! query ) return Params; // return empty object
       var Pairs = query.split(/[;&]/);
       for ( var i = 0; i < Pairs.length; i++ ) {
          var KeyVal = Pairs[i].split('=');
          if ( ! KeyVal || KeyVal.length != 2 ) continue;
          var key = unescape( KeyVal[0] );
          var val = unescape( KeyVal[1] );
          val = val.replace(/\+/g, ' ');
          if ( ! Params[key] ) Params[key] = new Array ();
          Params[key].push( val );
       }
       return Params;
    }