Delete Cookies with JavaScript

In this article, you will learn how to delete cookies with JavaScript.

Delete cookies with JavaScript

There are several ways to delete cookies, but you can also delete them with JavaScript.
A cookie has max-age (the key with the remaining time of the cookie) and expires (the key with the date to destroy the cookie).

You can delete cookies by setting the max-age value to 0 or by setting expires to a date in the past.

In JavaScript, operate the cookie as follows:

document.cookie = "key=value;key2=value2"

If you want to enter values ​​continuously, connect them with ;.

Sample Code

Below is sample code to delete cookies in two ways.

// Set cookies
document.cookie = "key1=value1"
document.cookie = "key2=value2"


// Delete a cookie by setting the max-age value to 0
document.cookie = "key1=;max-age=0"


// Delete a cookie by setting expires to a date in the past
var dt = new Date('2010-01-01T23:59:59Z');
document.cookie = `key2=;expires=${dt.toUTCString()}`;


console.log(document.cookie)