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

Posted by Aldrin Vicente
Aldrin Vicente
2,747 Points

How do I modify the "println" statement to accept a variable "person" using string interpolation to print "Hello Tom"

It says to assign "Tom" to the variable "person" and modify the println statement and I've been stuck for a while now. Thank you.

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

1 Answer

Daniel Johnson
Daniel Johnson
104,132 Points

The parameter person should be included inside the quotes, and Tom is passed to greeting's person parameter.

parameters.swift 
func greeting(person: String) {
    println("Hello \(person)")
}
greeting("Tom")
Aldrin Vicente
Aldrin Vicente
2,747 Points

Thank you so much Daniel. Really appreciated.