Nicolas (semi-active)

1. Cộng đồng
2. Computing Platform Community Discussions
3. The "document" function does not work with "querySelectorAll('.class').forEach(class => {});"

Don't worry! The reason it isn't working is that Khan Academy's webpage IDE doesn't have full ES6 support. Your program is fine. ES6 is a new, updated version of JS that, among other things, introd...