Unique key of this data.
Value that is used if it's not stored before.
Readonly
changeEmits when the stored data is changed.
Readonly
defaultValue that is used if it's not stored before.
Readonly
keyUnique key of this data.
Last value that was set, can be changed without effecting storage.
When you want a variable to stay in local storage and load it with a single line of code.
T is type of data to store.