Job interview : Angular Expert

Explore how Angular uses components as reusable elements for a single action, and how the Angular command line interface, decorators, pipes (pure and impure), and modules organize apps.

Explore how promises and observables manage asynchronous tasks in Angular, including subscribe callbacks, and learn production optimizations like uglifying and removing unused code.

Explore angular routing with the routes array mapping urls to components, and compare ahead of time versus just in time compilation, dependency injection, angular.json, view children, and services.

Master angular topics such as on destroy hooks, unsubscribing from observables, onpush change detection, input and output decorators, event emitters, and route resolvers with activated route insights.

Explain how angular provides a root singleton service via the injectable decorator, and how canActivate and canDeactivate guards with lazy loading using loadChildren in a single page application boost performance.

Discover how Angular improves list rendering with trackBy in ngFor and uses canActivate and canActivateChild guards for navigation. Explore BehaviorSubject, ReplaySubject, and AsyncSubject, the async pipe, and providedIn singleton services.

Explore Angular fundamentals like ngIf with else, ngSwitch with cases and default, ngClass for dynamic styles, interpolation with double curly braces, and two-way binding with ngModel via square and parentheses.

Explore Angular lifecycle hooks such as after view init and after content init, and see how templates, Webpack bundling, Angular CLI, host binding, host listener, and container elements shape rendering.

Explain angular view encapsulation and its strategies—none, emulated, and shadow dom—and explore how karma, jasmine, and protractor support testing, angular universal and server-side rendering for faster, search engine friendly rendering.