How do you handle errors globally in an Angular application?

Short answer: Implement a global error handler by extending Angular’s ErrorHandler class: @Injectable() export class GlobalErrorHandler implements ErrorHandler { handleError(error: any) { // log to server or show user notification console.error('Global error:', error); } } Provide it in your AppModule: providers: [{ provide: ErrorHandler, useClass: GlobalErrorHandler }] Can also use HTTP interceptors to catch API errors.

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.