How do you test asynchronous code in Angular tests?

Short answer: Use async/await with Angular's waitForAsync or Jasmine’s done callback. Use Angular’s fakeAsync and tick() to simulate asynchronous passage of time. Example with fakeAsync: it('should fetch data asynchronously', fakeAsync(() => { let data; service.getData().subscribe(result => data = result); tick(); // simulate async time passing expect(data).toEqual(['expected data']); }));

Real-world example (ShopNest)

ShopNest admin can be built in Angular with modules/components, services for API calls, and reactive forms for product edit.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.