15 Tricky TypeScript Questions That Stumped Me (And the Quiz I Built)

I thought I was pretty good at TypeScript… until I kept getting destroyed by questions on generics, conditional types, and mapped types.

After getting frustrated with existing quizzes, I decided to build my own.

TS Quiz

A free interactive quiz with 125 questions across 5 difficulty levels:

• Basic
• Intermediate
• Advanced
• Functional Programming
• React + TypeScript

It also includes new JavaScript and Python sections.

What makes it different? After finishing, an integrated AI analyzes your results and gives personalized feedback on your weak areas.

Want to test yourself?

https://www.ts-quiz.com/

No login required.

Which TypeScript concept always trips you up?

Drop your score in the comments 👇

I'm actively improving the quiz based on feedback.