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

General Discussion Displaying the Content

Kaung Khant Zaw
Kaung Khant Zaw
1,515 Points

Don't we need to add { } after => ?

I see the function does not have { } after => in line 22. I know we don't need to add { } if we are writing only one line in function but we are writing multiple lines of codes in the function. Also, I got only ' , ' in HTML instead of dog names when I put { } after =>.

1 Answer

Matthew Lang
Matthew Lang
13,483 Points

If you do not use { } in an arrow function JavaScript expects you to be returning whatever is on the right side. In this case on the right side is a template literal which is defined by using back ticks.

One cool thing about a template literal is that it can span multiple lines. You can read more about template literals here.