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iOS Objective-C Basics (Retired) Functional Programming in C Functions

Posted by Mikail Rahman
Mikail Rahman
Courses Plus Student 1,848 Points

Functions

Can the implementation of the function only be placed after the usage code block? Or can the implementation be placed before as well? What confuses me is that the implementation appears after the usage in the code. Shouldn't the implementation appear before the the usage so that the program knows what the function does?