Interview Tip: Emphasize that OnPush relies on . If you mutate a property inside an object passed as an @Input() , the object reference remains the same, and OnPush will not trigger a view update. Manual Change Detection Control
@Optional() : Prevents Angular from throwing an error if a dependency is missing; returns null instead.
Landing a high-paying frontend engineering role requires more than just knowing how to build a basic application. You need to demonstrate a deep, architectural understanding of the framework you use. For Angular developers, the interview process is notoriously rigorous, focusing heavily on performance, state management, and framework internals. decoded frontend angular interview hacking
, the curriculum targets specific high-level knowledge gaps: Decoded Frontend Angular Interview Hacking
The modern Angular landscape is undergoing a massive shift. You must be able to articulate the exact relationship between traditional change detection and the new reactive paradigm. Interview Tip: Emphasize that OnPush relies on
Ideal for lightweight applications or highly isolated operational modules. 3. Performance Tuning: Hacking the Lighthouse Score
At staff or senior level, you'll face system design. Not backend design – frontend architecture. , the curriculum targets specific high-level knowledge gaps:
Review this rapid-fire section right before walking into your interview room or opening your virtual meeting link.
// Example of clean Signals usage export class CounterComponent count = signal(0); doubleCount = computed(() => this.count() * 2); constructor() effect(() => console.log(`Current double count: $this.doubleCount()`)); increment() this.count.update(c => c + 1); Use code with caution. 3. Dependency Injection (DI) and View Mechanics
What are you interviewing for? (e.g., Mid-level, Senior, or Staff/Architect)