Cookies: Updating a cookie

To update the value of a cookie, just assign a new value to the cookie name:

document.cookie = 'name=Flavio2'

Similar to updating the value, to update the expiration date, reassign the value with a new expires or max-age property:

document.cookie = 'name=Flavio; max-age=31536000' //expires in 1 year

Just remember to also add any additional parameters you added in the first place, like path or domain.

Lessons in this unit:

0: Introduction
1: Setting cookies
2: Setting a cookie expiration date
3: Setting a cookie path
4: Setting a cookie domain
5: Cookies security
6: ▶︎ Updating a cookie
7: Deleting a cookie
8: Accessing the value of a cookie
9: Checking if a cookie exists
10: Inspecting cookies
Are you intimidated by Git? Can’t figure out merge vs rebase? Are you afraid of screwing up something any time you have to do something in Git? Do you rely on ChatGPT or random people’s answer on StackOverflow to fix your problems? Your coworkers are tired of explaining Git to you all the time? Git is something we all need to use, but few of us really master it. I created this course to improve your Git (and GitHub) knowledge at a radical level. Launching May 21, 2024. Join the waiting list!