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

JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Build a Quiz Challenge, Part 2 Solution

Something wrong with the code on the video..

Is he forgot to declare var html? because at the end of the code it was "html = "You got " + correctAnswers + " question(s) right."".

1 Answer

Steven Parker
Steven Parker
229,732 Points

It would be "best practice" to declare the variable, but unless the script is running in "strict" mode, implicit globals are allowed and will not cause an error.

I expect this was done unintentionally, and is not an example of recommended practice.