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Angular interviews can feel intimidating — dependency injection, change detection, RxJS, signals, and zone.js all come into play. But once you “decode” the patterns, they become predictable. Here’s how to hack your way through.
“Angular DI is hierarchical. A service provided in @Injectable(providedIn: 'root') is a singleton app-wide. If provided in a component, it gets a new instance for that component and its children. For feature modules, forRoot() vs forChild() controls singleton scope.”
Angular interviews can feel intimidating — dependency injection, change detection, RxJS, signals, and zone.js all come into play. But once you “decode” the patterns, they become predictable. Here’s how to hack your way through.
“Angular DI is hierarchical. A service provided in @Injectable(providedIn: 'root') is a singleton app-wide. If provided in a component, it gets a new instance for that component and its children. For feature modules, forRoot() vs forChild() controls singleton scope.”
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