The setItem
method is for
saving data. It takes a key as
its first parameter and a value
as its second parameter. The
getItem
method is for
getting data. It takes one
parameter - the key under
which this data was stored.
Let's try these methods in practice. First, let's store some string with some key:
localStorage.setItem('key', 'text');
And now retrieve our string from local storage:
let str = localStorage.getItem('key');
console.log(str); // shows 'text'
Write a script that will store three numbers under three different keys in local storage. Run this script to save the data. Then write a script that will retrieve your three numbers from local storage and find their sum. Run the second script and make sure that it works.