JAVASCRIPT/AJAX reload a page if cookie exists else stay on page

Question

I code mainly serverside with PHP and I ran into a situation where I need to reload the page based on user input. I set a cookie "reload" with value "1" and need a javascript or AJAX to check for it in real time. If the cookie exists, this script needs to trigger the event

 window.location.href="samplepage.php" 

I am really new here so hope this question is in right forum. Thanks for any help!

Answer 1

if (document.cookie.indexOf('reload') > -1 ) {
  window.location.href="samplepage.php" ;
}