Top Angular 2 Interview Questions and Answers - Essential Guide for Job Seekers

Last updated on Feb 07, 2024
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Angular 2 Interview Questions

To survive in the modern industry and to earn a very good salary, learning only JavaScript programming language is not sufficient, you must move on to learning JavaScript Frameworks also i.e., Angular. It doesn’t matter if you are thinking to start your career in software development or are already a software developer, you will always find Angular 2 Interview Questions useful. This is an open-source component-based UI framework that is written in TypeScript and is mainly used in building web, mobile, and desktop applications in HTML and JavaScript. Angular is an evolved and upgraded version of Angular JS and is invented by Google. For writing codes, Angular provides many language choices like Typescript, Dart, ES5, ES6. It supports both data and property blinding which allows a user to control DOM i.e., Data Object Model by binding class and HTML properties.

Quick Facts About Angular 2
What is the latest version of Angular? Angular 14 released on 2nd June 2022
When did angular 6 release? 14th September 2016
Who is the developer of Angular 2? Google
What language does Angular use? TypeScript
License MIT License
Official website

Frequently Asked Angular 2 Interview Questions for Developers

Here in this article, we will be listing frequently asked Angular 2 Interview Questions and Answers with the belief that they will be helpful for you to gain higher marks. Also, to let you know that this article has been written under the guidance of industry professionals and covered all the current competencies.

Q71. What is the use of arrow function in Angular 2?

They are additionally called lambda features in different languages. Using fats arrow (=>) we drop the want to use the 'function' keyword. Parameters are handed in the angular brackets <>, and the characteristic expression is enclosed inside the curly brackets {}.


items.forEach((a) => {

Q72. What is the best IDE for Angular 2?

An IDE’s main purpose is to provide a friendly coding environment. Angular 2 supports the following code-editors which are highly efficient:

  • Visual Studio Code
  • Sublime Text
  • Atom Editor
  • Webstorm
  • Angular IDE
  • Brackets
  • Vim Editor
Q73. What is the difference between declarations and entryComponents?
Declarations entryComponents
Used to make Directives including components and pipes within a specific module Used to register components for offline computation in a module
Directives, components, and pipes are matched against the HTML only if they are declared or imported Components used for router config can be added implicitly
Q74. What is bundling in Angular 2?

In Angular 2, Bundling is known as the process of joining/combining multiple files into one single file. Third Party-libraries and other dependencies are generally bundled into a module for increasing productivity of code.

Q75. What is BASE HREF in Angular 2?

The <base href="/"> in Angular 2 is to direct the Angular Router to the static part of a URL. It helps the router to differentiate and make modifications to the URL accordingly.

Q76. What is use of subscribe in Angular 2?

The subscribe() function is observable in Angular 2 which defines how to obtain or generate values or messages to be published. To execute a particular observable in a timely fashion, you will have to create notifications using the subscribe() method.

Q77. What is entry component in Angular 2?

An entry component in Angular is one that loads imperatively, i.e it can be loaded without any referenced in the template, by any type or category. One can specify an entry component by either bootstrapping it as a NgModule or even in a routing definition.

Q78. What is internationalization in angular?

With application users being across the globe nowadays, Internationalization in Angular is used to simplify the process of designing and preparing your app for multiple languages.

Q79. What is angular material design?

Angular Material Design is an open-source framework that can be used to build highly scalable mobile and commercial apps. There is no requirement of a license for usage. The main aim of Material Design is a unified version of visual, motion and interaction design over multiple devices.

Q80. What is angular UI?

To simplify the process of development in Angular 2, Angular UI is used which is a stack of modules written in Angular.js to provide more flexibility to the code. Having a wide variety of modules, you can use the UI for various declarations like components or pipes individually.

Tips to Crack Angular 2 Interview Questions
  • Angular Interviews are not just about learning Java Concepts but one of the toughest questions is to know about software and system designs.
  • Practice is the key factor to crack any type of interview. Angular interviews are no exception too.
  • You should know about basics such as TypeScript, Services, Metadata, Components, etc.
  • If you know about the answer but you are taking too much time to explain it, then that land you nowhere. So yes, Time Yourself i.e. answer your question within a time limit.
  • Teach a concept to your friend or anyone which you have learned. By this, you will know if you learn that concept.
  • Honesty is the best policy. If you don’t know the answer just admit it without wasting the interviewer and your time.
Reviewed and verified by Umesh Singh
Umesh Singh

My name is Umesh Singh having 11+ experience in Node.JS, React JS, Angular JS, Next JS, PHP, Laravel, WordPress, MySQL, Oracle, JavaScript, HTML and CSS etc. I have worked on around 30+ projects. I lo...