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

Can someone find my error?

Hi, For the life of me I can't understand why this calling this function is returning an error. If you can help, I appreciate it.

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

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

1 Answer

Stone Preston
Stone Preston
42,016 Points

task 3 states: Call the function greeting and pass it the string "Tom"

the argument is a string so it needs to be in quotes:

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