Optional types, which handle the absence of a value. Optionals say either “there is a value, and it equals x” or “there isn’t a value at all”.
Optionals are an example of the fact that Swift is a type safe language. Swift helps you to be clear about the types…
what is localization?
is a process of making your app support multiple languages.
First lets start with static elements in main storyboard
Simple login Screen before and after localization