How do I add an item to sessionStorage?

How do I add an item to sessionStorage?

You can add an item to sessionStorage using the setItem method. For example: sessionStorage.setItem('key', 'value');

Can you give me an example with an object?

Sure! You can convert an object to a JSON string and then store it. For example: sessionStorage.setItem('user', JSON.stringify({name: 'John', age: 30}));

How do I retrieve that object later?

You can retrieve it using getItem and then parse it back to an object: const user = JSON.parse(sessionStorage.getItem('user'));

What happens if I try to store more than the limit?

If you exceed the storage limit, it will throw a QuotaExceededError. It's best to check the available space before storing large items.