Abstract{Function} this function is called to assign the initial value of a saved value
{Array
returns 0 if key was not found, returns 1 if key was deleted
[success, value], success true if value was in storage and read, value is the read string
write a value with to the local storage of the browser with the class specific key (this.key)
{string} string to write to the local storage of the browser
{string} adds the hash to the saved object and creates all keys in the
returns 1 if the hash was added, 0 if it already existed
deletes all data, resets the object in local storage to an empty object
{string} the value is saved with this key to the local storage