Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Swift Functions and Optionals Functions Syntax and Parameters

Call the function greeting and pass it the string "Tom". How? why wont greeting(Tom) work?

cannot figure this out

parameters.swift
func greeting(person: String) {
    println("Hello \(person)")
}

greeting(Tom)

1 Answer

Maximiliane Quel
PLUS
Maximiliane Quel
Courses Plus Student 55,489 Points

Hi,

you are not passing in a String. You need to add quotes around Tom like so:

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

greeting("Tom")