Angular’s default change detection checks everything, all the time. A high-level candidate knows how to turn this off. Understanding ChangeDetectionStrategy.OnPush is the ultimate signal of performance literacy. The Strategy: Explain how forces the framework to only check a component when its
To help tailor a specific preparation plan for you, let me know: What are you targeting? decoded frontend angular interview hacking
This is a favorite for senior roles. You must be able to explain the hierarchical structure of DI and how Angular resolves dependencies through different provider scopes ( root , module , or component level). 2. The Performance "Hack": Change Detection Angular’s default change detection checks everything