List of 500 questions in angular

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 Here is a set of 500 questions for Angular. These questions span various levels of difficulty, from beginner to advanced, and cover different aspects of the frameworks.

Angular Questions (500)

Basic Concepts

  1. What is Angular and why is it used?
  2. Explain the difference between Angular and AngularJS.
  3. What are components in Angular?
  4. What is the purpose of @NgModule in Angular?
  5. What is data binding in Angular?
  6. Explain the different types of data binding in Angular.
  7. What are directives in Angular? Give examples.
  8. What is a service in Angular?
  9. How do you create a component in Angular?
  10. Explain the role of ngOnInit in Angular components.
  11. What is dependency injection in Angular?
  12. How do you pass data between components in Angular?
  13. What is the purpose of @Input and @Output decorators in Angular?
  14. What is Angular CLI and how do you use it?
  15. How do you create an Angular application using CLI?
  16. What is a pipe in Angular?
  17. What are observables in Angular?
  18. How do you handle events in Angular?
  19. What are lifecycle hooks in Angular?
  20. What is the difference between ngOnInit and ngAfterViewInit?

Intermediate Concepts

  1. What is routing in Angular and how does it work?
  2. What is lazy loading in Angular and how is it implemented?
  3. What are Angular services and how do they work?
  4. How do you use HttpClient module in Angular?
  5. What is an Angular form and how do you create one?
  6. What are reactive forms in Angular?
  7. What are template-driven forms in Angular?
  8. What is Angular’s Change Detection mechanism?
  9. How do you handle error handling in Angular?
  10. What is an Angular interceptor and how do you use it?
  11. What are guards in Angular routing?
  12. What is the purpose of Angular pipes?
  13. What are custom pipes in Angular?
  14. How does Angular handle authentication and authorization?
  15. What is Angular Universal?
  16. How does Angular handle security (XSS, CSRF)?
  17. What are Angular modules and how are they structured?
  18. How do you manage state in Angular?
  19. How can you optimize the performance of an Angular application?
  20. What is the purpose of Angular's zone.js?

Advanced Concepts

  1. What is NgRx and how do you use it in Angular?
  2. Explain Angular’s AOT (Ahead-of-Time) Compilation.
  3. What is a custom directive in Angular?
  4. How do you create custom services in Angular?
  5. Explain the use of Angular’s Renderer2 service.
  6. How do you handle dynamic component loading in Angular?
  7. What is Angular Ivy and how does it improve performance?
  8. How do you optimize the bundle size of an Angular application?
  9. How do you implement server-side rendering with Angular Universal?
  10. What is the purpose of Angular’s ChangeDetectorRef?

Testing

  1. How do you test Angular components using Jasmine?
  2. How do you test Angular services?
  3. What is TestBed in Angular testing?
  4. How do you mock HTTP requests in Angular tests?
  5. What is Protractor and how is it used for end-to-end testing in Angular?
  6. How do you write unit tests for Angular pipes?
  7. What are Angular testing utilities like fakeAsync and tick?
  8. How do you test Angular forms?
  9. What is the role of Karma in Angular testing?
  10. How do you test Angular routing?

Performance and Optimization

  1. What is tree shaking in Angular?
  2. How do you enable production mode in Angular?
  3. What is Angular’s Ahead-of-Time (AOT) compilation?
  4. How do you optimize Angular’s change detection strategy?
  5. What are Angular’s lazy loading strategies?
  6. How do you avoid memory leaks in Angular applications?
  7. What is differential loading in Angular?
  8. How do you optimize images in an Angular app?
  9. How do you use Web Workers in Angular?
  10. How do you optimize Angular’s bundle size?

State Management

  1. What is Redux and how do you implement it in Angular?
  2. What is NgRx and what are its core concepts?
  3. How do you manage state with NgRx in Angular?
  4. What is the role of actions, reducers, and selectors in NgRx?
  5. How does NgRx handle side effects (e.g., with NgEffects)?
  6. How do you use Store in NgRx?
  7. What is an Observable store and how does it differ from traditional stores?
  8. How do you handle asynchronous actions with NgRx?
  9. What are selectors in NgRx and how do you use them?
  10. How do you test NgRx reducers and effects?

Security

  1. How do you implement CSRF protection in Angular?
  2. What is XSS and how do you prevent it in Angular?
  3. How do you secure an Angular application against injection attacks?
  4. How do you handle authentication in Angular using JWT?
  5. How do you implement OAuth 2.0 authentication in Angular?

Miscellaneous

  1. What is Angular CLI’s ng build --prod command used for?
  2. How do you deploy an Angular application to a web server?
  3. What is the purpose of Angular’s ng serve command?
  4. How do you use Angular’s ng upgrade for upgrading AngularJS to Angular?
  5. How does Angular handle internationalization (i18n)?
  6. What is the Angular compiler and how does it work?
  7. How do you handle dynamic content loading in Angular?
  8. What are Angular elements?
  9. How does Angular handle forms validation?
  10. How do you debug Angular applications?
  11. How do you upgrade Angular dependencies?
  12. What is the role of the Angular router in navigation?
  13. How do you configure Angular’s environment settings?
  14. How do you add animations to Angular applications?
  15. What is Angular’s change detection strategy and how does it affect performance?

Basic Concepts

  1. What is the role of @Injectable decorator in Angular?
  2. How do you define a route in Angular?
  3. What is the difference between ngOnInit and ngOnChanges in Angular?
  4. How do you handle input validation in Angular forms?
  5. What is the purpose of ngModel in Angular?
  6. How does Angular handle dependency injection for services?
  7. What are the differences between ngFor and ngIf directives in Angular?
  8. How do you perform two-way data binding in Angular?
  9. What is the purpose of Angular's ngSwitch directive?
  10. How can you create a dynamic component in Angular?
  11. What is the role of ng-content in Angular components?
  12. What is the difference between ViewChild and ContentChild in Angular?
  13. What is the use of the @HostListener decorator in Angular?
  14. How do you pass parameters to a component using routes in Angular?
  15. How do you handle lazy loading in Angular modules?
  16. What is a Resolver in Angular, and how is it used in routing?
  17. How do you share state between components in Angular?
  18. What is the difference between ngOnInit and ngAfterViewInit in Angular?
  19. How do you handle global error handling in Angular?
  20. How do you test an Angular service with dependencies?

Intermediate Concepts

  1. What are template-driven forms and how do they differ from reactive forms in Angular?
  2. How do you create a custom validator for an Angular form?
  3. What are async and await in Angular?
  4. How do you manage asynchronous tasks with Observables in Angular?
  5. What are the advantages of using Angular’s HttpClient module?
  6. How do you implement pagination in Angular?
  7. What is Angular’s ngOnDestroy lifecycle hook and when is it called?
  8. How do you perform routing with parameters in Angular?
  9. How can you handle HTTP request errors globally in Angular?
  10. How do you handle sessions in Angular?
  11. How do you handle authentication using JWT in Angular?
  12. What is the purpose of @Input and @Output decorators in Angular components?
  13. What is the difference between ngOnInit and ngAfterViewChecked?
  14. How can you implement authentication guards in Angular routing?
  15. How do you handle lazy loading for feature modules in Angular?
  16. What is a Service Worker and how do you implement it in Angular?
  17. What are Angular decorators and how are they used?
  18. How can you use Angular animations for UI effects?
  19. What is the difference between ngFor and ngForOf in Angular?
  20. How do you manage HTTP requests with RxJS operators like switchMap, map, and catchError?

Advanced Concepts

  1. How does Angular’s change detection mechanism work?
  2. What is Angular Universal and how do you implement SSR in Angular?
  3. How can you implement Progressive Web Apps (PWA) with Angular?
  4. What are Angular’s performance optimization techniques for large applications?
  5. How do you configure and use Angular’s router in a large app?
  6. How does Angular use RxJS to manage complex asynchronous workflows?
  7. How do you use the Renderer2 service for DOM manipulation in Angular?
  8. How do you handle dynamic form fields in Angular?
  9. How do you optimize Angular applications for production?
  10. How can you use Angular’s Dependency Injection in unit testing?
  11. What is a custom pipe and how do you create one in Angular?
  12. What are Angular’s route resolvers and how do they work?
  13. How do you implement server-side pagination with Angular?
  14. How does Angular’s Ivy renderer improve performance?
  15. What is the purpose of ChangeDetectorRef in Angular?
  16. How do you optimize an Angular application’s bundle size?
  17. How does Angular handle security (e.g., XSS, CSRF)?
  18. What are the advantages of using ngOnChanges lifecycle hook in Angular?
  19. What is the purpose of ng-template and ng-container in Angular?
  20. How do you create a custom HTTP interceptor in Angular?

Testing

  1. How do you test an Angular component with dependencies?
  2. What is the purpose of the fakeAsync function in Angular testing?
  3. How do you test Angular forms using TestBed?
  4. How do you mock an Angular service for testing?
  5. How do you test Angular observables in unit tests?
  6. What is the difference between unit tests and integration tests in Angular?
  7. How do you use Angular’s TestBed for component testing?
  8. What is end-to-end testing in Angular, and how do you perform it with Protractor?
  9. How do you test HTTP calls in Angular?
  10. What is the role of the async utility in Angular testing?
  11. How do you simulate user input in Angular tests?
  12. What is the purpose of HttpTestingController in Angular testing?
  13. How do you test Angular services with observables?
  14. How do you use Jasmine for testing Angular components?
  15. How do you mock Angular HTTP responses in unit tests?
  16. How do you test Angular routing?
  17. How do you test Angular pipes?
  18. How do you write test cases for an Angular service with multiple methods?
  19. How do you test form validation in Angular?
  20. How do you simulate and test lifecycle hooks in Angular components?

Miscellaneous

  1. What is the Angular CLI ng serve command used for?
  2. How do you upgrade your Angular application to a newer version?
  3. What is Angular Material, and how do you integrate it into an Angular app?
  4. How do you deploy an Angular application to AWS, Firebase, or Heroku?
  5. How do you handle environment-specific configurations in Angular?
  6. How do you use Angular for mobile app development?
  7. How do you optimize an Angular app for SEO?
  8. How do you implement custom validation for Angular reactive forms?
  9. How do you handle form submission and reset in Angular?
  10. How do you use the ng-content directive to create reusable components?
  11. What is the ngOnChanges lifecycle hook used for in Angular?
  12. How do you implement internationalization (i18n) in Angular?
  13. What is Angular’s ng-template directive used for?
  14. How do you set up an Angular development environment?
  15. How do you handle third-party libraries in Angular applications?
  16. How do you configure and deploy an Angular application in production mode?
  17. How do you use Angular CLI to create and manage a new project?
  18. What is ngForTrackBy and how does it improve performance?
  19. How do you configure routing with child routes in Angular?
  20. How do you handle session management in Angular?

Basic Concepts

  1. What is the difference between ngOnInit and ngAfterContentInit?
  2. How do you configure route guards in Angular?
  3. What is the purpose of the ngOnChanges lifecycle hook in Angular?
  4. How do you handle browser navigation events in Angular?
  5. What is Angular’s ngIfElse directive used for?
  6. How do you define a custom directive in Angular?
  7. What is Angular's @ViewChild decorator used for?
  8. What is the role of ngOnDestroy in Angular components?
  9. What is the difference between an Angular module and a component?
  10. How does Angular support internationalization (i18n)?
  11. What is the purpose of Angular’s ChangeDetectionStrategy?
  12. How do you implement route transition animations in Angular?
  13. What is the difference between ngIf and ngSwitch in Angular?
  14. How do you create a pipe in Angular?
  15. How do you make a component reusable in Angular?
  16. How do you use Angular’s @Input and @Output decorators together?
  17. What is the purpose of ng-content in Angular?
  18. How can you create a dynamic form in Angular?
  19. How do you implement conditional styling in Angular?
  20. What are Angular's built-in validators for forms?

Intermediate Concepts

  1. How do you create and manage Angular services?
  2. What is the role of an Angular service worker?
  3. How do you use observables with Angular’s HttpClient?
  4. What is an HttpInterceptor in Angular, and how do you use it?
  5. How do you manage routing with child routes in Angular?
  6. How do you handle HTTP request errors globally in Angular?
  7. What is the purpose of NgModule in Angular?
  8. What is lazy loading in Angular and how does it improve performance?
  9. What is the purpose of Angular’s ngClass directive?
  10. How do you implement search functionality in Angular?
  11. How do you handle dynamic component loading in Angular?
  12. How do you use form controls with Angular reactive forms?
  13. How do you add custom form validators in Angular?
  14. How does Angular's HttpClient handle API requests?
  15. How do you use the ngModel directive for two-way data binding in Angular forms?
  16. What is the difference between ngOnInit and ngOnDestroy lifecycle hooks?
  17. What is an Angular route resolver and how is it used?
  18. What are the different types of Angular forms and when to use them?
  19. What is the difference between ngFor and ngForOf in Angular?
  20. How do you optimize change detection in Angular?

Advanced Concepts

  1. What is Angular Universal and how do you implement SSR (Server-Side Rendering)?
  2. How do you manage state in an Angular application?
  3. How do you use the Renderer2 class to manipulate the DOM in Angular?
  4. How do you implement lazy loading with multiple modules in Angular?
  5. What is a singleton service in Angular and how is it implemented?
  6. How do you optimize Angular applications for production builds?
  7. What is Angular's zone.js and how does it work?
  8. How do you configure Angular CLI to create a production build?
  9. How do you implement dynamic component injection in Angular?
  10. What is the role of ng-container in Angular?
  11. How does Angular use trackBy to optimize performance in lists?
  12. How do you handle authentication and authorization in Angular applications?
  13. How do you create a custom form control in Angular?
  14. What are Angular modules and how do you organize them?
  15. What are ngIf and ngFor structural directives in Angular?
  16. What are template reference variables in Angular and how are they used?
  17. What is ngOnChanges used for in Angular?
  18. How do you test Angular components and services?
  19. How do you configure Angular for progressive web apps (PWA)?
  20. What are custom pipes in Angular and when should you use them?

Testing

  1. What is the role of TestBed in Angular testing?
  2. How do you test asynchronous code in Angular using fakeAsync?
  3. How do you test Angular services that return observables?
  4. How do you use HttpTestingController for testing HTTP requests in Angular?
  5. How do you write unit tests for Angular components?
  6. How do you mock an Angular service during unit tests?
  7. How do you test form validation in Angular?
  8. How do you handle component input and output in Angular unit tests?
  9. How do you use Jasmine for testing Angular applications?
  10. How do you test Angular routing and navigation?
  11. How do you test user interactions in Angular components?
  12. What is the purpose of async and await in Angular testing?
  13. How do you test Angular pipes?
  14. How do you mock Angular HTTP calls in unit tests?
  15. How do you write unit tests for Angular directives?
  16. How do you handle component lifecycle hooks in Angular tests?
  17. How do you mock third-party libraries in Angular testing?
  18. How do you set up an Angular testing environment?
  19. How do you test Angular services with multiple dependencies?
  20. How do you perform end-to-end (E2E) testing in Angular?

Miscellaneous

  1. What is the difference between ngOnInit and ngOnChanges in Angular?
  2. How do you configure environment variables in Angular?
  3. How do you manage Angular version upgrades in a large application?
  4. How do you deploy an Angular application to a cloud service?
  5. How do you integrate Angular with third-party libraries?
  6. How do you integrate Angular Material into an Angular project?
  7. How do you handle browser storage (localStorage, sessionStorage) in Angular?
  8. How do you create reusable components in Angular?
  9. How do you configure routing with query parameters in Angular?
  10. How do you create a custom HTTP interceptor in Angular?
  11. What are Angular’s change detection strategies and how do they affect performance?
  12. How do you implement authentication in Angular using JWT?
  13. How do you handle CORS issues in Angular?
  14. How do you implement internationalization (i18n) in Angular?
  15. How do you set up unit testing with Karma and Jasmine for Angular?
  16. How do you handle errors in Angular applications?
  17. How do you use ng-content for content projection in Angular?
  18. How do you handle custom directives in Angular?
  19. What is Angular’s ngSwitch directive and how does it work?
  20. How do you configure global styles in Angular?

Angular Questions (100)

Basic Concepts

  1. What is the role of the ngOnInit lifecycle hook in Angular?
  2. What are Angular modules and what is their purpose?
  3. How do you handle event binding in Angular?
  4. How do you create a new Angular component?
  5. How do you bind a class to an element dynamically in Angular?
  6. How do you manage two-way data binding in Angular?
  7. What is the difference between ngFor and ngForOf?
  8. How do you bind the style of an element dynamically in Angular?
  9. What is a template-driven form in Angular?
  10. What is the difference between template-driven and reactive forms in Angular?
  11. What is Angular’s ngModel directive used for?
  12. What is the role of ng-content in Angular?
  13. How do you handle form validation in Angular?
  14. How do you add third-party libraries to an Angular project?
  15. How do you create a service in Angular?
  16. What is the difference between a service and a component in Angular?
  17. How do you inject services into Angular components?
  18. How do you handle routing in Angular?
  19. What is the purpose of Angular's routerLink directive?
  20. What is lazy loading and how does Angular implement it?

Intermediate Concepts

  1. How do you implement authentication in Angular?
  2. How do you configure an Angular module for feature lazy loading?
  3. What is an Angular pipe and how do you create a custom one?
  4. How do you handle HTTP requests in Angular?
  5. How does Angular handle error handling in HTTP requests?
  6. What is the difference between ngOnInit and ngOnChanges lifecycle hooks?
  7. How do you manage state in an Angular application?
  8. How do you use Angular’s HttpClientModule to make API calls?
  9. What is Angular's ngIfElse directive used for?
  10. What is the role of ngClass in Angular?
  11. How do you handle dynamic content loading in Angular?
  12. How do you configure Angular’s routing for child routes?
  13. How do you use the Angular ngFor directive to iterate over a list?
  14. How do you implement pagination in Angular?
  15. What is the role of the @Injectable decorator in Angular services?
  16. How do you define a route guard in Angular?
  17. How does Angular handle route transitions and animations?
  18. What is Angular's change detection strategy?
  19. What is the purpose of the ngOnChanges lifecycle hook in Angular?
  20. How do you create reusable components in Angular?

Advanced Concepts

  1. How do you implement Angular Universal for server-side rendering (SSR)?
  2. What are Angular decorators, and how are they used?
  3. How do you manage session storage and local storage in Angular?
  4. How does Angular handle the observables and RxJS?
  5. How do you implement a WebSocket in Angular?
  6. How does Angular’s Renderer2 help with DOM manipulation?
  7. How do you configure production builds with Angular CLI?
  8. What are Angular’s built-in lifecycle hooks?
  9. What are the different types of Angular modules?
  10. How do you manage routing in Angular with dynamic routes?
  11. What is Angular’s Zone.js and how does it handle change detection?
  12. What are Angular’s async pipes and how do you use them?
  13. How do you implement role-based access control (RBAC) in Angular?
  14. How do you handle multi-language support in Angular applications?
  15. How do you configure Angular to handle Progressive Web Apps (PWA)?
  16. How do you optimize performance in Angular applications?
  17. How do you use Angular Material components in an Angular application?
  18. What are Angular’s lifecycle hooks and how are they used?
  19. How do you dynamically create Angular components using ViewContainerRef?
  20. How do you set up continuous integration and deployment (CI/CD) in Angular?

Testing

  1. How do you test Angular components using Jasmine?
  2. How do you test an Angular service with observables?
  3. How do you mock HTTP requests in Angular unit tests?
  4. How do you perform integration testing in Angular?
  5. What is the purpose of Angular’s TestBed?
  6. How do you test Angular forms?
  7. How do you test Angular routing in unit tests?
  8. How do you use spies in Jasmine for Angular testing?
  9. How do you test asynchronous functions in Angular tests?
  10. How do you test a component with input and output bindings?
  11. How do you test custom Angular pipes?
  12. How do you use Angular’s async and fakeAsync utilities for testing?
  13. How do you test services with dependencies in Angular?
  14. How do you perform end-to-end testing in Angular with Protractor?
  15. What is the role of HttpTestingController in Angular testing?
  16. How do you perform unit tests for Angular directives?
  17. How do you test component lifecycle methods in Angular?
  18. How do you mock Angular services in unit tests?
  19. How do you use Angular's ngMock module for testing?
  20. How do you use the Angular CLI for generating tests?

Miscellaneous

  1. What is the difference between ngIf and ngSwitch in Angular?
  2. How do you implement real-time updates in Angular using WebSockets?
  3. How do you define and use constants in Angular applications?
  4. How do you structure your Angular project for scalability?
  5. What is the purpose of ng-container in Angular templates?
  6. How do you optimize an Angular app's bundle size?
  7. How do you use Angular CLI for testing and debugging?
  8. How does Angular handle event bubbling and propagation?
  9. How do you implement nested routes in Angular?
  10. How do you handle user authentication in an Angular application?
  11. How do you use Angular’s ngModel with form controls?
  12. How do you inject multiple services into a component in Angular?
  13. How do you implement custom validators for forms in Angular?
  14. How do you set up environment configurations in Angular?
  15. What is the purpose of Angular's trackBy function?
  16. How do you handle animations in Angular?
  17. How do you handle HTTP request retries in Angular?
  18. How do you use ng-template for conditional rendering in Angular?
  19. What is a singleton service, and how does Angular implement it?
  20. How do you implement modular architecture in Angular?

Basic Concepts

  1. What is the role of ngOnChanges lifecycle hook in Angular?
  2. How do you pass data to child components in Angular?
  3. How can you handle user input in Angular forms?
  4. What is the difference between ngIf and ngSwitch in Angular?
  5. How do you dynamically add/remove classes in Angular?
  6. How do you share data between components in Angular?
  7. What is the purpose of Angular directives like ngFor and ngIf?
  8. How do you implement routing with query parameters in Angular?
  9. How do you bind form input values to a model in Angular?
  10. What is the difference between ngOnInit and ngAfterViewInit lifecycle hooks?

Intermediate Concepts

  1. How do you set up and use environment variables in Angular?
  2. What is a shared module in Angular and how is it used?
  3. How do you use Angular interceptors to modify HTTP requests?
  4. What is the difference between an Angular service and a factory?
  5. How does Angular’s change detection work?
  6. How do you use ngModel for two-way data binding in Angular?
  7. How do you handle HTTP request retries in Angular?
  8. How do you lazy load Angular modules?
  9. How do you set up form validation in Angular?
  10. What is the role of ng-content in Angular?

Advanced Concepts

  1. How do you implement advanced animations in Angular?
  2. How does Angular handle the concept of zone.js for change detection?
  3. How do you make Angular applications accessible (a11y)?
  4. What is Angular Universal and why would you use it?
  5. How do you handle error logging and reporting in Angular?
  6. How do you deploy Angular applications to cloud platforms like AWS or Firebase?
  7. How do you configure Angular for internationalization (i18n)?
  8. How can you manage complex forms with dynamic form controls in Angular?
  9. What are Angular's best practices for component design and structure?
  10. How do you optimize Angular performance, especially for large applications?

Testing

  1. How do you perform end-to-end testing in Angular?
  2. How do you test Angular services with dependencies?
  3. How do you use HttpClientTestingModule in Angular tests?
  4. How do you mock third-party services in Angular testing?
  5. How do you test components with child components in Angular?
  6. How do you use Jasmine spies in Angular testing?
  7. How do you handle async operations in Angular tests?
  8. How do you test form validation in Angular?
  9. How do you perform unit tests for custom pipes in Angular?
  10. How do you test Angular lifecycle hooks?

Miscellaneous

  1. How does Angular handle memory management and garbage collection?
  2. What are the best practices for structuring Angular modules and components?
  3. How do you use dynamic components in Angular?
  4. How do you implement progressive web apps (PWA) in Angular?
  5. How does Angular handle template expressions and bindings?
  6. How can you manage session or local storage in Angular?
  7. How does Angular support single-page applications (SPA)?
  8. What are Angular guards, and how do you use them for routing?
  9. How do you manage authentication and authorization in Angular apps?
  10. How do you use ngModel with Angular reactive forms?

Basic Concepts

  1. How do you create a custom directive in Angular?
  2. What is the ngOnDestroy lifecycle hook used for in Angular?
  3. How do you bind data to an HTML element’s attribute in Angular?
  4. What is a component decorator, and how is it used in Angular?
  5. How does Angular handle custom events in components?
  6. How do you pass data between sibling components in Angular?
  7. What is Angular’s dependency injection system, and how does it work?
  8. What is the purpose of the ngModel directive in Angular forms?
  9. What are template-driven forms in Angular, and how do they differ from reactive forms?
  10. How do you manage form validation in Angular?

Intermediate Concepts

  1. How do you enable lazy loading for child modules in Angular?
  2. How can you optimize Angular performance for large applications?
  3. How do you perform HTTP requests in Angular using HttpClientModule?
  4. How do you create and use custom pipes in Angular?
  5. How do you implement Angular guards to protect routes?
  6. What is Angular’s Renderer2 and how is it used for DOM manipulation?
  7. What is the ng-container directive, and how is it useful in Angular?
  8. How do you handle authentication in an Angular app?
  9. How do you configure an Angular app for different environments (development, production)?
  10. How do you configure a routing module in Angular?

Advanced Concepts

  1. What are Angular observables and how are they different from promises?
  2. How do you implement server-side rendering (SSR) in Angular with Angular Universal?
  3. What is Angular’s change detection mechanism, and how can it be optimized?
  4. How do you use ngOnChanges to detect input changes in a component?
  5. How do you manage the state of your Angular application using NGRX or services?
  6. How do you implement a service worker in Angular to enable Progressive Web App (PWA) features?
  7. What is the role of Angular’s NgModule and how does it structure an Angular application?
  8. How do you handle dynamic component loading in Angular?
  9. How do you integrate Angular Material into an Angular application?
  10. How do you debug and troubleshoot issues in Angular applications?

Basic Concepts

  1. What is a feature module in Angular, and how is it different from a regular module?
  2. How do you handle events in Angular forms (such as ngSubmit)?
  3. What is the difference between ngOnInit and ngAfterContentInit lifecycle hooks in Angular?
  4. How can you implement a custom pipe in Angular to format data?
  5. How do you use Angular’s ViewChild to access a child component?

Intermediate Concepts

  1. How does Angular handle dependency injection in services?
  2. How do you enable route guards to protect certain routes in an Angular app?
  3. How do you pass data between parent and child components in Angular using @Input and @Output?
  4. What is the role of ng-template in Angular?
  5. How do you perform client-side validation in Angular forms?

Basic Concepts

  1. What is the role of Angular’s ngOnChanges lifecycle hook?
  2. How does Angular handle the concept of "change detection"?
  3. What is the difference between the ngFor and ngIf directives in Angular?
  4. How do you apply styles conditionally to an element in Angular?
  5. What is Angular's HttpClientModule and how do you use it to make HTTP requests?

Intermediate Concepts

  1. What are Angular decorators, and how do they function in the context of components and services?
  2. How do you use Angular's HttpInterceptor to handle HTTP requests globally?
  3. How does Angular handle routing with nested routes?
  4. How do you configure Angular CLI for building production-ready applications?
  5. How do you use Angular’s ng-content to insert content into components?

This list should cover a comprehensive range of topics for Angular, from basic to advanced questions, to help deepen your understanding or prepare for interviews!

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