[Objective-C] Functions / Paul Hudson의 Objective-C cheat sheet
3. Functions (1) A function that accepts no parameters and returns nothing (2) A function that accepts no parameters and returns a string (3) A function that accpets a string and returns a string (4) A function that accpets a string and an integer, and returns a string (5) Returning multiple values from a function (5) A closure that accepts no parameters and returns nothing. (6) A closure that a..