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!

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 Objective-C Basics (Retired) Fundamentals of C Variables


why is there this _ sin after every word?

1 Answer

Are you talking about the underscores that you see in variable and function names?

It's just a style of coding. It increases readability rather than jamming all the words together. We're used to spaces between words but we can't use spaces in variable names, etc... so we need a substitute for that.

Another style is to make the first word lowercase and every word after that uppercase. Again, to increase readability. There's no technical reason it has to be that way.