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iOS Swift Functions and Optionals Parameters and Tuples Tuples

Posted by charricefx
charricefx
7,114 Points

I do not understand why constant and function names are the same. Would you get an error?

For instance: 

func greeting (person : String) {
  let greeting = "Hello \(person)
   return greeting
}

1 Answer

Stepan Ulyanin
Stepan Ulyanin
11,318 Points
Stepan Ulyanin
Stepan Ulyanin
11,318 Points

Functions in every language have signatures - name, parameter list and return value type, you need to make exactly same signature to get an error. Constants and variables can have the same names as function unless they are instance variables and the functions are instance methods, because then you will get an error or unexpected behavior since the compiler uses the names to match with autosynthesised property names.

charricefx
charricefx
7,114 Points

Thanks Stepan!