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iOS Swift Closures Functions as First Class Citizens Functions as First Class Citizens

Fabian Ullrich
Fabian Ullrich
2,442 Points
Posted by Fabian Ullrich
Fabian Ullrich
2,442 Points

I'm stuck in a code challenge about swift 2 closures

I have to assign the printer function to a constant and then use this constant to call the function with any string passed in. At least I understood it like this, but when I write it like down below, I get a "Bummer" message saying: "Make sure your function is assigned to a constant called 'stringPrinter'.

functions.swift 
func printer(p: String) {
  print(p)
}

let stringPrinter = printer()
stringPrinter("Hey!")

1 Answer

jcorum
jcorum
71,830 Points

Fabian, one small problem. When you assign a function to a constant you need to omit the parentheses, as emphasized in the video. Try this instead:

func printer(p: String) {
  print(p)
}

let stringPrinter = printer
stringPrinter("Hey!")