We can check and get if cookies are available

getcookie.js

        var isCookiesExist = false;
        var parse_cookie;
        if (document.cookie.indexOf('fordata=') != -1) {
            isCookiesExist=true;
            var cookiedata = document.cookie
                .split('; ')
                .map(cookie => cookie.split("="))
                .reduce((accumulator, [key, value]) => (
                    { ...accumulator, [key.trim()]: decodeURIComponent(value) }
                ), {});
             parse_cookie = JSON.parse(cookiedata.fordata)
             var cookieName=parse_cookie.data_name;
             var cookiePhone=parse_cookie.data_phone;
             var cookieCourse=parse_cookie.course;
             var cookieEmail=parse_cookie.data_email;


        }         



        var bmiName = cookieName != null || cookieName != "null" || cookieName != undefined ? cookieName : urlParams.get('data_phone');

        var phn = cookiePhone != null || cookiePhone != "null" || cookiePhone != undefined ? cookiePhone : urlParams.get('data_phone');