Deloitte Angular Interview Questions and Answers – Part 3

11. What is routing in Angular?

Routing in Angular is the process of navigating from one component to another in an Angular application. It is achieved using the Angular Router module. The router maps URL paths to components and enables navigation between different views in the application.

12. How do you implement lazy loading in Angular?

Lazy loading is a technique used to load only the required modules and components when they are needed, instead of loading everything at once. In Angular, lazy loading can be implemented by creating feature modules and configuring the routes to load them on demand using the loadChildren property in the route configuration.

13. What is Angular CLI?

Angular CLI (Command Line Interface) is a tool provided by Angular for automating and simplifying the process of creating, building, testing, and deploying Angular applications. It comes with a set of commands that can be used to generate components, services, modules, and more, as well as building and serving the application.

14. What is AOT compilation in Angular?

AOT (Ahead of Time) compilation is a process in which the Angular compiler converts Angular HTML and TypeScript code into efficient JavaScript code during the build phase. This results in smaller bundle sizes, faster loading times, and improved performance of the Angular application.

15. How do you handle errors in Angular applications?

Errors in Angular applications can be handled using Angular’s built-in error handling mechanisms, such as try-catch blocks, error handlers, and observables. Additionally, Angular provides error handling features like ErrorHandler and HttpInterceptor for intercepting and handling errors globally in the application.

Conclusion

These are some of the common Angular interview questions and answers that you may come across during a Deloitte interview. It is important to have a good understanding of Angular concepts and best practices to ace the interview and land the job. I hope this tutorial has helped you in preparing for your Angular interview at Deloitte. Good luck!