[Objective-C] Classes / Paul Hudson의 Objective-C cheat sheet

 

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4. Classes

 

(1) Creating an empty class

 

 

 

(2) Creating a class with two properties

 

 

 

(3) Creating a class with a private property

 

 

 

(4) Creating a class with an instance method

 

 

 

(5) Creating a class with a static method

 

 

 

(6) Extending a type with a new method

 

 

 

(7) Checking the class of an object

 

 

 

(8) Typecasting