Debounced search with switchMap in Angular
Angular interview exercise on RxJS interop, difficulty 2 of 3. Solve it in the editor beside a worked example, or cold in Interview mode with the example hidden; the tests run the moment you do.
SearchComponent keeps the typed text in a `query` signal and shows `results` from SearchApi.search(query): wait 30 ms after the last keystroke (debounceTime), skip repeated queries (distinctUntilChanged), switch to the newest search (switchMap), and never search for an empty query (results []). Render results as <li>.
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.