HTML5 client local storage

Most talked feature of html5 is storing data on client side. This could be achieved in 3 ways.

1. Session storage.
2. Local storage
3. Database storage

Session storage: This is more like a upgraded version of a cookie. It persists only during browsing and once window is closed data is lost. This is easy to implement.

sessionStorage.setItem('shoppingId', '23234')

alert("Shopping Id is: " + sessionStorage.getItem('shoppingId'));

//same thing could also be achieved with sessionStorage.shoppingId

//to remove

sessionStorage.removeItem('shoppingId');