I Built a Free TypeScript & React Quiz with 125 Questions – Test Your Real Skills

Hey devs,

After spending a lot of time writing TypeScript code (and sometimes feeling more confident than I probably should), I decided to create something to help myself and others properly measure their TypeScript knowledge.

So I built TS Quiz — a free interactive quiz platform focused on modern TypeScript and React + TypeScript.

What’s inside?

• 125 hand-crafted questions
• 5 difficulty levels (Basic → Advanced)
• Topics include:
  • Core TypeScript concepts
  • Generics and Utility Types
  • Conditional Types & Mapped Types
  • React + TypeScript (props, hooks, context, etc.)
  • Functional programming patterns with types
  • And many tricky real-world scenarios

No login or signup required. You get instant scoring and it clearly shows which areas you need to focus on.

I made this because I believe one of the fastest ways to improve is knowing exactly where your weak spots are — not just guessing.

Try it here:

👉 https://www.ts-quiz.com/

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Would love honest feedback from the community:

• Did any questions feel unclear or incorrect?
• Are there important topics missing?
• Too easy / too hard in certain sections?

I’m actively improving it based on feedback, so every comment helps.

If you work with TypeScript or React, give it a shot and let me know your score in the comments 👇

Happy coding!