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

Anthia Tillbury
Anthia Tillbury
3,388 Points
Posted by Anthia Tillbury
Anthia Tillbury
3,388 Points

What is a "compound expression"?

I am confused what it means?

Jeff McDivitt
Jeff McDivitt
23,970 Points
Jeff McDivitt
Jeff McDivitt
23,970 Points

Can you provide an example of exactly what you do not understand?

2 Answers

Phil Ethridge
Phil Ethridge
2,736 Points
Phil Ethridge
Phil Ethridge
2,736 Points

There's an pretty good example over here using math vs. code. If I remember from the course, this term was used to describe a String as a compound expression, so that might look something like this:

let fullName: String = firstName + " " + middleName + " " + lastName

Also a very basic example, but what makes it compound is that you're adding multiple types together. A regular expression, by contrast, would simply be:

let fullName: String = "John Smith"

Hope that helps!

Anthia Tillbury
Anthia Tillbury
3,388 Points
Anthia Tillbury
Anthia Tillbury
3,388 Points

I think I understand, thank you for your time.