This article focuses on Angular 2 interview questions, and we’ll also discuss some sample Angular 2 interview questions and answers that’ll help you with your prep.
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In this article, we’ll learn:
Here are a few sample Angular 2 interview questions and answers to get you started if you’re a beginner:
Here are some differences between AngularJS and Angular 2:
Routing helps us create unique URLs for different kinds of content in our application and develop single-page applications. Using routing, we can redirect our users to pages relevant to them based on their choice on the main page. A route is that unique part after the URL’s hash sign (#). Routes in Angular 2 help show several contents based on the route taken.
There are two types of modules in Angular 2: root and feature modules. An application can have several feature modules but only one root module.
Here are some sample Angular 2 interview questions and answers that’d be more of interest to you if you have some experience:
The purpose of the polyfills.ts file is to make the user application compatible with different browsers and help users with the necessary environmental setup required for ES6., using which we usually write code in Angular 2.
Services offer modularity, more compartmentalization of concerns, and extract any common functionalities out of components. Adding services to your Angular 2 applications will make your components free from the data access code. Some features of services are:
Here are some component-specific hooks in Angular 2:
In this section, we’ve listed several of the top basic concepts on which Angular 2 interview questions are asked. Practicing these fundamental Angular 2 topics will help you assess your preparation:
1. In Angular 2, define and describe:
2. What is the difference between:
Q1. How old is angular 2?
While the Beta version of Angular 2 was released in December 2015, the final version was released in September 2016.
Q2. What are lifecycle hooks, and why is it important?
Lifecycle hooks are important functions called at some specific points during a component lifecycle in architecture-based Angular applications.
Q3. What are some of the best IDEs for Angular 2?
Angular IDE, Webstorm, and Visual Studio Code are some of the best Angular IDEs for Angular 2. Sublime Text, Brackets, and Atom are also good options available as IDEs for Angular 2.
Q4. State some advantages of Angular 2 over Angular 1.
Some advantages of Angular 2 over Angular 1 are: Angular 2 is not just a language; it is also a platform. The performance and speed of Angular 2 are better than that of Angular 1. Angular 2 allows flexible routing with the help of lazy loading features. Angular 2 implements web standards. You won’t lose the functionality of a standalone controller and $scope. It has a simpler DI (Dependency Injection). With Angular 2, you will get the perks of Typescript and ES6.
Q5. What is deep linking in Angular 2?
Deep linking is a URL process that helps with web or app indexing so search engines can crawl these links comfortably and take users to a particular page or specific content without having to cross the application from the homepage
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