Native JavaScript Cookie Functions

Set A Cookie

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

Delete A Cookie

document.cookie = “username=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/;”;

Get A Cookie

function getCookie(cname) {
var name = cname + “=”;
var decodedCookie = decodeURIComponent(document.cookie);
var ca = decodedCookie.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 “”;
}

Credit: https://www.w3schools.com/js/js_cookies.asp