Interview Questions in Angular (Part-3)

11. What is the purpose of Angular services, and how are they created?

Answer: Angular services are singletons that provide methods and data shared across components. They are created using the @Injectable() decorator and can be injected into components or other services.

12. Explain the role of decorators in Angular.

Answer: Decorators are a way to add metadata to classes and their members. In Angular, decorators like @Component, @NgModule, and @Injectable help configure and enhance various parts of your application.

13. What is lazy loading in Angular, and why is it important?

Answer: Lazy loading is a technique that loads parts of an application on-demand, reducing the initial load time. It's essential for large applications, as it improves performance by loading only what is needed when it's needed.

14. How can you handle HTTP requests in Angular?

Answer: Angular provides the HttpClient module to make HTTP requests. You can use it to communicate with REST APIs and handle data retrieval and submission.

15. What are Angular pipes, and why are they useful?

Answer: Angular pipes are used to transform and format data for display in the UI. They are useful for filtering, sorting, and modifying data without changing the original source.

These interview questions can serve as a starting point for assessing a candidate's knowledge of Angular. Depending on the specific requirements of your job position, you can customize these questions to delve deeper into particular areas of expertise.

Relevant Information:

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