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 trialPeter Huang
5,427 Pointswhat " arr.length " does.
Inside the for() loop - I dont get what " arr.length " does.
I know it's to check the length but length for what? It's set to arr
1 Answer
Steven Parker
231,236 PointsIt's the length of the array stored in "arr", essentially how many items the array is holding.