JavaScript get & set cookies

function getCookies(cookieName) {
let cookie = {};
document.cookie.split(';').forEach(function(el) {
let [key,value] = el.split('=');
cookie[key.trim()] = value;
});

 return cookie[cookieName];
}
function clearSpecificCokieByName(name) {
// document.cookie = name +'=; Path=/; Expires=Thu, 01 Jan 1970 00:00:01 GMT;';
 document.cookie = name +'=; Expires=Thu, 01 Jan 1970 00:00:01 GMT;';
}