Javascript Q&A 1.0

Here comes Javascript Q&A for your interview, skill knowledge check.
If you want to know how much you have about your javascript skills, try this!

You have over 100 questions and quickly review whenever you want.
This app doesn't have in-app charge so until you confirm your knowledge fully, you can keep using this.

Before you go to your JS engineer interview, or some exam in school, try this so you don't miss your future opportunity.