How to modify and delete cookie in JavaScript

This article mainly introduces "how to modify and delete cookie in JavaScript" related knowledge, editor through the actual case to show you the operation process, the method of operation is simple and fast, practical, I hope that this "how to modify and delete cookie in JavaScript" article can help you solve the problem.

How JavaScript modifies and deletes cookie

This gives us a way to modify and delete cookie-directly overwriting the original cookie.

For example, there is a cookie like this:

Username=itxueyuan;expire=1369929124191;path=/;domain=www.csstop.com

Change the user name to "JavaScript" and set it to expire one day later:

Var date=new Date ()

Var cookieExpire=date.getTime () + 24036001000

/ / when modifying cookie, the name, path and domain name must be the same

[xss_clean] = "username=JavaScript; expire=" + cookieExpire + "; path=/;domain=www.csstop.com"

Delete the cookie

How JavaScript modifies and deletes cookie

Var date=new Date ()

Var cookieExpire=date.getTime ()-1000; / / set to a past time

/ / when deleting a cookie, the name, path, and domain name must be the same

[xss_clean] = "username=JavaScript; expire=" + cookieExpire + "; path=/;domain=www.csstop.com"

Note: in order to delete a cookie, you can set its expiration time to a past time.

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