How to set/unset cookie with Javascript

Browser cookies is old school but a lot of companies are still using cookies to track the users or to store information temporarily in the browser. Below javascript snippet to get/set or delete the cookies associated with the current domain.

function CreateCookie(name, value, days) {
    
  if (days) {
    var date = new Date();
    date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
    var expires = "; expires=" + date.toGMTString();
  } 
  else 
    var expires = "";
    
  document.cookie = escape(name) + "=" + escape(value) + expires + "; path=/";
}

function ReadCookie(name) {
    
  var nameEscape = escape(name) + "=";
  var cookieSplit = document.cookie.split(';');
	
  for (var i = 0; i < cookieSplit.length; i++) {
    var c = cookieSplit[i];
    while (c.charAt(0) == ' ') c = c.substring(1, c.length);
    if (c.indexOf(nameEscape) == 0) return unescape(c.substring(nameEscape.length, c.length));
  }
	
  return null;
}

function DeleteCookie(name) {
    CreateCookie(name, "", -1);
}

Hope it helps !!