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.

Jong Kim
6,145 PointsWhat's the difference of the first question and fifth question? Why does fifth question need another text += i + ' ' ;
Why does fifth question need another text += i + ' ' ; but first question?
1 Answer

Steven Parker
220,501 PointsYou didn't say which program (the snapshot has 3 different ones), but they mostly all seem to be creating a string of numbers separated by spaces into a variable named "text". So "i" is the variable with the number and the plus adds on a space.
The obvious difference between the examples is the type of loop being used.
Jong Kim
6,145 PointsJong Kim
6,145 PointsI'm asking about while loop section.