TypeScript Quiz — Prove You Know the Type System
TypeScript has become the default for large-scale JavaScript projects. Knowing generics, utility types, and type narrowing is now a baseline expectation for senior roles.
TypeScript appears in 70%+ of modern React and Node.js job listings. Demonstrating a high score shows you understand the type system deeply — not just that you can add `: string` to variables.
Sample Questions
3 of 10Q1.What is a TypeScript type guard?
Q2.What does the `keyof` operator produce?
Q3.Which utility type makes every property in a type required?
Answer all 3 questions to see your score
Get your verified TypeScript score
Take the full 10-question quiz. Your score gets added to your developer resume as a verified skill badge — proof that you actually know TypeScript.
How verified skills work
Take the TypeScript quiz
10 adaptive questions covering real-world scenarios, not just syntax recall.
Your score is recorded
Skeelzy tracks your accuracy per skill over time — multiple attempts improve your verified score.
Add it to your resume
Your TypeScript accuracy appears as a verified badge on your public Skeelzy resume — proof for recruiters.