Angular Interview Questions Your Guide to Success
Angular's comprehensive framework and powerful features make it a leading choice for enterprise applications. Jobpe offers a comprehensive collection of Angular interview questions, real-world scenarios, and expert guidance to help you excel in your next technical interview.
angular
- Frontend
What is Angular and what problems does it solve?
Angular is a TypeScript-based front-end framework for building scalable single-page applications.
Explain the concept of components in Angular.
Components control views (HTML templates) and consist of TypeScript code, styles, and templates.
What is dependency injection in Angular?
Dependency injection allows services and components to be injected into classes, promoting modularity and testability.
Describe how data binding works in Angular.
Data binding synchronizes data between the model and view, including one-way and two-way binding.
What are Angular directives?
Directives are instructions in the DOM that tell Angular how to manipulate the DOM or attach behavior.
How does Angular handle routing?
Angular uses the RouterModule to navigate between views and supports lazy loading of modules.
Explain Angular lifecycle hooks.
Lifecycle hooks are methods that allow you to tap into key events like component creation, changes, and destruction.
What is RxJS and how is it used in Angular?
RxJS is a reactive programming library used in Angular for handling asynchronous data streams.
How do you optimize Angular application performance?
Techniques include Ahead-of-Time compilation, change detection strategy tuning, and lazy loading modules.
What testing strategies are commonly used in Angular?
Unit testing with Jasmine, end-to-end testing with Protractor or Cypress, and use of TestBed for component testing.
Frontend
What is Angular and what problems does it solve?
Angular is a TypeScript-based front-end framework for building scalable single-page applications.
Explain the concept of components in Angular.
Components control views (HTML templates) and consist of TypeScript code, styles, and templates.
What is dependency injection in Angular?
Dependency injection allows services and components to be injected into classes, promoting modularity and testability.
Describe how data binding works in Angular.
Data binding synchronizes data between the model and view, including one-way and two-way binding.
What are Angular directives?
Directives are instructions in the DOM that tell Angular how to manipulate the DOM or attach behavior.
How does Angular handle routing?
Angular uses the RouterModule to navigate between views and supports lazy loading of modules.
Explain Angular lifecycle hooks.
Lifecycle hooks are methods that allow you to tap into key events like component creation, changes, and destruction.
What is RxJS and how is it used in Angular?
RxJS is a reactive programming library used in Angular for handling asynchronous data streams.
How do you optimize Angular application performance?
Techniques include Ahead-of-Time compilation, change detection strategy tuning, and lazy loading modules.
What testing strategies are commonly used in Angular?
Unit testing with Jasmine, end-to-end testing with Protractor or Cypress, and use of TestBed for component testing.
