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.

Java Introduction to Scala Higher Order Functions Create an Anonymous Function

Yevgeny Yermakov
Yevgeny Yermakov
10,979 Points

Anonymous function

Rewatched the previous video, like, 10 times but still can’t get through this Quiz Question. It seems like I’ve tried every possible option but my answer is still incorrect :–(

This is the question I don’t know the answer to: Let’s apply our anonymous function. We have an array of integers called numbers, let’s use our anonymous function on numbers.

val numbers = Array(5, 10, 15, 20, 25)

val result = numbers.___((x: Int)___ x + 10)

(my answer to the second question in this quiz is correct)

1 Answer

Fahad Mutair
Fahad Mutair
10,358 Points
val result = numbers.map((x: Int) => x + 10)
Yevgeny Yermakov
Yevgeny Yermakov
10,979 Points

Great! That worked. Thank you very much!