Type casting is a way to check the type of an instance, or to treat that instance as a different superclass or subclass from somewhere…
Read More
Code
Error Handling
The code demonstrates the use of an error handler in Swift language, as well as the meaning of the keywords “do”, “catch”, “throws”, “throw”,…
Read MoreGuard and Defer Statements
This code demonstrates the practical use of the keywords “guard” and “defer”.
Read MoreOptional Chaining
The code explains what “optional chaining” are.
Read More
