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iOS Swift Functions and Optionals Functions Syntax and Parameters

Posted by Cory Cox
Cory Cox
570 Points

What does it mean in challenge three of three when I have to call function greeting and pass it the string "Tom"?

I figured that within the function already created, i could out side the last squible parenthesis place greeting(Tom). But it doesn't know what Tom is so i placed var person = Tom. Still nothing. What am I doing wrong?

1 Answer

Rodrigo Chousal
Rodrigo Chousal
16,009 Points
Rodrigo Chousal
Rodrigo Chousal
16,009 Points

Hey Cory!

You need to declare Tom a string, like so: "Tom".

You could try declaring Tom as a variable before, but it's pretty redundant. To declare Tom before calling the function, you'd do this:

var person = "Tom" // Notice the quotation marks (""). These declare your variable as a string, containing Tom.

greeting(person)

The right way to call this function would be like this:

greeting("Tom")

Hope this helps!