Tutorials on how to spot & diagnose javascript bugs?

A Webflow site I’m working on crashed and I’m in contact with their support team to fix. That said, I want to be better prepared to address/preempt this in the future. Are there any really outstanding tutorials you’d all recommend on how diagnose and fix bugs in javascript?
1 Reply
StefanH
StefanH13mo ago
I'm puzzled. Are you programming the site? You said some other team works on the site. Why do you want to prevent their bugs?