Here are some Angular interview questions that are typically asked of candidates with 1 year of experience, along with some possible answers:
What are the key differences between AngularJS and Angular?
AngularJS is a JavaScript framework that was released in 2010. Angular is a newer framework that was released in 2016. Angular is based on TypeScript, which is a superset of JavaScript. Angular also has a number of new features, such as dependency injection, routing, and pipes.
What are the benefits of using Angular?
Angular has a number of benefits, including:
* It is a well-documented and well-supported framework.
* It has a large and active community.
* It is easy to learn and use.
* It is highly scalable.
* It is a good choice for building large, complex applications.
What are the different types of Angular components?
There are two types of Angular components:
* **Component directives:** These are components that are used to create reusable UI elements.
* **Directives:** These are components that are used to add functionality to existing HTML elements.
How does data binding work in Angular?
Data binding is a way of connecting data from the Angular application to the HTML DOM. There are two types of data binding:
* **Property binding:** This is used to bind the value of an Angular property to the value of an HTML attribute.
* **Event binding:** This is used to bind the occurrence of an Angular event to the execution of an HTML event handler.
What are the different types of Angular directives?
There are three types of Angular directives:
* **Structural directives:** These are directives that are used to change the structure of the HTML DOM.
* **Attribute directives:** These are directives that are used to add attributes to HTML elements.
* **Content directives:** These are directives that are used to add content to HTML elements.
What are the different ways to create Angular services?
There are two ways to create Angular services:
* **The @Injectable() decorator:** This decorator is used to mark a class as a service.
* **The providers property in the Angular module:** This property can be used to specify a list of services that should be created when the Angular application is bootstrapped.
How does Angular routing work?
Angular routing is a way of navigating between different views in an Angular application. Angular routing uses a router to resolve the URL of the current view and to load the corresponding view.
What are the different types of Angular pipes?
There are two types of Angular pipes:
* **Filter pipes:** These are pipes that are used to filter data.
* **Transform pipes:** These are pipes that are used to transform data.
What are the different ways to debug Angular applications?
There are a number of ways to debug Angular applications, including:
* **The Angular console:** The Angular console is a built-in debugging tool that can be used to inspect the state of an Angular application.
* **The Angular debugger:** The Angular debugger is a more powerful debugging tool that can be used to step through the code of an Angular application.
* **The Chrome DevTools:** The Chrome DevTools are a set of debugging tools that can be used to debug Angular applications.
What are some of the common Angular performance issues?
Some of the common Angular performance issues include:
* **Too many components:** Having too many components in an Angular application can slow down the application.
* **Too much data binding:** Using too much data binding in an Angular application can slow down the application.
* **Too much DOM manipulation:** Using too much DOM manipulation in an Angular application can slow down the application.
How can you improve the performance of Angular applications?
There are a number of ways to improve the performance of Angular applications, including:
* **Use lazy loading:** Lazy loading is a technique that can be used to load components only when they are needed.
* **Use caching:** Caching can be used to store data in memory so that it does not have to be loaded from the server every time it is needed.
* **Use performance optimization techniques:** There are a number of performance optimization techniques that can be used to improve the performance of Angular applications.
These are just a few of the Angular interview questions that you may be asked. By preparing for these questions, you can increase your chances of landing your next Angular job.
No comments:
Post a Comment