Control Transfer Statements in Swift

break, continue, fallthrough, throw and return

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Swift has five control transfer statments. What are they, and how can they be used?

• continue
• break
• fallthrough
• return
• throw

Difficulty: Beginner | Easy | Normal | Challenging

Prerequisites:

• Some way of coding with Swift, either through Playgrounds or through a simple application.

Along with:

• Some knowledge of loops, functions, switches and Arrays. Some further knowledge of errors (although this is tricky) would help you to understand throws.

Terminology

break: Breaks the current execution whenever the keyword is encountered

continue: Stops the execution of a loop at the current point, and returns control to the next iteration of the loop

Control Transfer Statements: Keywords that allow you to transfer control from one piece of code to another

fallthrough: Make a Switch run the next case after a match

return: Make a function return