In Angular 15+, providedIn: 'root' is lazy-loaded, but if you use providedIn: 'platform' , your service survives app re-initialization. Perfect for auth services.
Angular’s DI system is powerful. You must understand how to share data and logic across components.
Read about how Ivy compiles components. Conclusion
A senior candidate would also note that API calls should be placed in ngOnInit , not in the constructor, because the component isn't fully set up yet. Decoded Frontend - Angular Interview Hacking %21%21TOP%21%21
: Starts the dependency search in the parent injector, skipping the local one.
: computed(() => fn) derives a read-only value from other signals. It is lazily evaluated and memoized.
This is where comes into play. It’s not just about memorizing questions; it’s about decoding the framework to ace the technical interview and prove your expertise. Why Angular Interviews Are Challenging In Angular 15+, providedIn: 'root' is lazy-loaded, but
For component-level lazy loading, master ( @defer ). This syntax allows you to defer the loading of heavy template fragments until specific conditions are met, such as on idle , on hover , or on interaction . TrackBy Functions
Decoded Frontend - Angular Interview Hacking !!TOP!!: Ace Your Next Role
The "Angular Interview Hacking" approach, championed by Decoded Frontend and its creator Dmytro Mezhenskyi—a Google Developer Expert (GDE) in Angular and a Microsoft MVP—is designed to bridge exactly that gap. It moves beyond simple Q&A and dives into the core mechanisms that separate mid-level developers from senior candidates. According to one reviewer, the course even helped them "breeze through" a senior Angular role interview. You must understand how to share data and
The approach highlights that top-tier companies aren't just looking for someone who can write components. They are looking for engineers who can optimize performance, structure large applications, and troubleshoot complex state management issues. Key Pillars of the Hacking Methodology:
Don't just mention ChangeDetectorRef . Proving you understand performance is a "senior" skill: