Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

iOS Swift 2.0 Collections and Control Flow Control Flow With Loops For In Loops

Amit Ahuja
Amit Ahuja
706 Points

Appending Data from "For..in loop"

I have to get the values from my for in loop and append it to the results variable. Can't figure out how to do so.

var results: [Int] = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

for multiplier in 1...10 {
    print(multiplier * 6)

1 Answer

You need to leave the array empty, create a multiplier constant outside the loop, and rather than print the results of the multiplication, append them to the array.

var results: [Int] = []
let multiplier = 6
for i in 1...10 {
    results.append(i * multiplier)