Jest quiz

Test your Jest knowledge with a free interactive quiz — 50 questions with answers and explanations. No signup needed to play.

How do you configure Jest for TypeScript?

1. How do you configure Jest for TypeScript?
2. How do you run setup code before each test in a `describe` block?
3. What is a "snapshot" test?
4. How do you mock a whole module?
5. How do you group related tests?
6. How do you assert a string matches a regex?
7. What does `jest.useFakeTimers()` do?
8. How do you assert an array contains a specific item?
9. Which function asserts equality?
10. How do you measure code coverage?
11. How do you skip a test?
12. How do you assert a function throws?

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