What is the difference between #import and #include in Objective-C?

Question

What are the differences between #import and #include in Objective-C and are there times where you should use one over the other? Is one deprecated?

I was reading th

Answer 1

If you are familiar with C++ and macros, then

#import "Class.h" 

is similar to

{
#pragma once

#include "class.h"
}

which means that your Class will be loaded only once when your app runs.