jQuery - Change href attr

Question

I trying to change href via jQuery, but I don't know why it's not working...

$(document).ready(function () {
  var oldurl = $('`http://google.com`');
  var newurl = $('`http://yahoo.com`');

  $('a[href="' + oldurl + '"]').attr('href', newurl);

  // it's not working too...
  //$('a[href="http://google.com"]').attr('href', 'http://yahoo.com');

  // it's not working too...
  //$('.mylink').attr('href', newurl);
});

JSFiddle

Solution

You just need:

var oldurl = 'http://google.com';
var newurl = 'http://yahoo.com';
$('a[href="' + oldurl + '"]').attr('href', newurl);

Demo

Urls must be string and not jQuery objects and you forgot to close the square bracket.