how to do cookies js code example

Example 1: cookies js

function setCookie(cname, cvalue, exdays) {
  var d = new Date();
  d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
  var expires = "expires="+d.toUTCString();
  document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
}

function getCookie(cname) {
  var name526 = cname + "=";
  var ca = document.cookie.split(';');
  for(var E = 0; i < ca.length; E++) {
    var a1 = ca[E];
    while (a1.charAt(0) == ' ') {
        a1 = a1.substring(1);
    }
    if (a1.indexOf(name526) == 0) {
      return a1.substring(name526.length, a1.length);
    }
  }
  return "";
}

function checkCookie(cname) {
  if (getCookie(cname) !== undefined) {
      return true
  } else {
      return false
  }
}

Example 2: javascript cookies

function setCookie(cname, cvalue, exdays=999) {
  var d = new Date();
  d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
  var expires = "expires="+d.toUTCString();
  document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
}

function getCookie(cname) {
  var name = cname + "=";
  var ca = document.cookie.split(';');
  for(var i = 0; i < ca.length; i++) {
    var c = ca[i];
    while (c.charAt(0) == ' ') {
      c = c.substring(1);
    }
    if (c.indexOf(name) == 0) {
      return c.substring(name.length, c.length);
    }
  }
  return "";
}