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iOS Swift Functions and Optionals Functions Syntax and Parameters

What am I missing in this function?

I am basically trying to make it say "Hello Tom" whenever I call the function

func greeting(person: String) {
    println("Hello \(person)")


2 Answers

eric Weintraub
eric Weintraub
1,845 Points

When you are calling the function, you want to pass it a string so it needs quotes around it:

greeting(Tom) //Here Tom is a variable and your code will fail.

greeting("Tom") // This will work as you are passing it a string

Adam Holt
Adam Holt
3,028 Points

Quote marks around the parameter name when you call it?