With this library, you can create cookies using Cookies.set(). You can also define the number of days until the cookie expires: Cookies.set('name', 'Buffy', { expires: 365 }); Additionally, you can use Cookies.set() to update cookies. Cookies.set('name', 'Sabrina', { expires: 50 }); With the JavaScript Cookie library, you can specify which data you want to extract using Cookies.get(): Cookies.get('name'); //returns Sabrina To delete a cookie, you no longer need to specify an expiry date in the past; instead, you can use: Cookies.remove('name');