Check if cookie exists else set cookie to Expire in 10 days

Question

Here is what I'm looking to do (pseudo-code):

Imagine the name of the cookie in the example is "visited" and it contains nothing.

if visited exists then alert("hello again"); else create visited - should expire in 10 days; alert("This is your first time!") 

How can I achieve this in JavaScript?

Answer 1

You need to read and write document.cookie

if (document.cookie.indexOf("visited=") >= 0) {   // They've been here before.   alert("hello again"); } else {   // set a new cookie   expiry = new Date();   expiry.setTime(expiry.getTime()+(10*60*1000)); // Ten minutes    // Date()'s toGMTSting() method will format the date correctly for a cookie   document.cookie = "visited=yes; expires=" + expiry.toGMTString();   alert("this is your first time"); }