How to delete a cookie?

Question

Is my function of creating a cookie correct? How do I delete the cookie at the beginning of my program? is there a simple coding?

function createCookie(name,value,days) 

function setCookie(c_name,value,1) {   document.cookie = c_name + "=" +escape(value); }  setCookie('cookie_name',mac);  function eraseCookie(c_name) {   createCookie(cookie_name,"",-1); } 

Answer 1

Try this:

function delete_cookie( name, path, domain ) {   if( get_cookie( name ) ) {     document.cookie = name + "=" +       ((path) ? ";path="+path:"")+       ((domain)?";domain="+domain:"") +       ";expires=Thu, 01 Jan 1970 00:00:01 GMT";   } } 

You can define get_cookie() like this:

function get_cookie(name){     return document.cookie.split(';').some(c => {         return c.trim().startsWith(name + '=');     }); }