NestJS quiz

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

What does a `Pipe` do?

1. What does a `Pipe` do?
2. How do you read a path parameter `id`?
3. Which decorator declares a GET endpoint?
4. Which package is the de-facto choice for declaring DTOs with validation?
5. Which decorator marks a class as a controller?
6. Which HTTP platform does NestJS use by default under the hood?
7. Which decorator marks a class as injectable into other classes?
8. What is the difference between `@nestjs/typeorm` and `@nestjs/prisma`?
9. What does an `Interceptor` do?
10. What does `@nestjs/config` provide?
11. How do you return a 201 with a custom body from a `@Post()` handler?
12. How do you inject a service into a controller?

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