Handling user inputs
Started learning Swift and wanted to practice by solving code coach challenges, but I'm having troubles converting user inputs to arrays. https://code.sololearn.com/c3I42NMhIJvJ/?ref=app
in the second case, since you got the string from the user, you need to unwrap the value. Do it like word!.characters.split etc... add an ! aftet word and it works.
well, the user input can be nil. So swift wraps the input into an Optional String type and not String. In swift, every Optional String should be unwrapped either with an ? or an ! before being used to get the actual value. Unwrapping makes sure the value is not nil.
George Samanlian thanks. Could you explain what unwrapping does