Storage.setItem()

The setItem() method of the Storage interface, when passed a key name and value, will add that key to the given Storage object, or update that key's value if it already exists.

keyName

A string containing the name of the key you want to create/update.

keyValue

A string containing the value you want to give the key you are creating/updating.

undefined.

setItem() may throw an exception if the storage is full. Developers should make sure to setItem().

The following function creates three data items inside local storage.

function populateStorage() {
  localStorage.setItem('bgcolor', 'red');
  localStorage.setItem('font', 'Helvetica');
  localStorage.setItem('image', 'myCat.png');
}

• Storage.getItem()
• Storage.removeItem()
• Using the Web Storage API