How to get the query string by javascript?

javascript query-string
Jayesh picture Jayesh · May 25, 2010 · Viewed 101.5k times · Source

How to extract the query string from the URL in javascript?

Thank you!

Answer

Josh Stodola picture Josh Stodola · May 25, 2010

You can easily build a dictionary style collection...

function getQueryStrings() { 
  var assoc  = {};
  var decode = function (s) { return decodeURIComponent(s.replace(/\+/g, " ")); };
  var queryString = location.search.substring(1); 
  var keyValues = queryString.split('&'); 

  for(var i in keyValues) { 
    var key = keyValues[i].split('=');
    if (key.length > 1) {
      assoc[decode(key[0])] = decode(key[1]);
    }
  } 

  return assoc; 
}

And use it like this...

var qs = getQueryStrings();
var myParam = qs["myParam"];

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