HttpClient in Angular: interview exercises

HttpClient in Angular: 5 test-checked interview exercises (GET into a signal, httpResource), each beside a worked example, with tests as you go. Free.

1. GET into a signal
2. httpResource
3. A service that posts
4. Retry, then fall back
5. An interceptor adds the token

Each exercise pairs a worked example with a twin problem to solve in a real editor; the tests run the moment you do. Interview mode hides the example: solve it from memory, without the hint or the solution, and it counts as solved cold. Progress is saved in your browser, and in your account if you sign in.

More Angular topics

• Components & templates
• Signals
• Inputs & outputs
• Dependency injection
• Pipes & directives
• Forms
• RxJS interop

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