Decoded Frontend - Angular Interview Hacking %21%21top%21%21 May 2026

Angular Interview Hacking is a comprehensive video course created by Dmytro Mezhenskyi , the founder of Decoded Frontend

7. Testing strategy

• Unit tests: isolated components, services, pipes with TestBed or Jest.
• Integration tests: component + template + child components.
• E2E: Cypress for flows (login, forms, critical paths).
• Test guidance: aim for high coverage on critical logic, use mocking for HttpClient, test observables and error paths, CI run tests on PRs.

Build and Break: Create a small project and intentionally cause errors to practice debugging—a skill highly valued in seniors.

If you use OnPush, Angular only checks inputs that change by reference.

1. What is a component in Angular?

   Here are some of the most commonly asked Angular interview questions:

   2. Change Detection – The Hidden Goldmine

   90% of candidates can't explain:

   • Using the HttpClient module
   • Creating a service to handle API requests

   The Angular Interview Hacking curriculum focuses on topics that frequently trip up even experienced developers. Created by a Google Developer Expert (GDE), the course provides a database of over 90 popular interview questions. Core Pillars of the Prep Guide