angular 2 interview questions: How To Answer Angular 2 Interview Questions


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    Angular 2 is one of the most popular frameworks for developing web applications. Whether you’re looking to get hired or just want to brush up on your Angular skills, reading this article will help you out. In addition to providing some great tips for answering interview questions about Angular 2, we’ll also show you some common interview questions with sample answers that have worked well for others who’ve been in similar situations!

    Angular 2 Interview Questions

    Angular 2 is a JavaScript framework for building web applications. It’s an open source project that uses TypeScript, which is a superset of JavaScript. Angular 2 was created by the same team behind Angular 1, but it differs from its predecessor in many ways:

    • It’s written in TypeScript instead of plain old ES5 or ES6 (ES2015) code. That means it can take advantage of modern language features like modules, classes, and decorators–allowing you to write more modular code that’s easier to organize into components.
    • It has no relation whatsoever with Angular 1 because both were developed independently by different teams within Google until they merged together into one single project around 2016-2017

    What is Angular?

    Angular is a client-side framework for building mobile and desktop web applications. It’s an open source project maintained by Google, which was created to address the challenges of developing large scale applications in JavaScript.

    Angular 2 is the latest version of Angular, which was released in 2016 after a complete rewrite of its predecessor, AngularJS (version 1).

    What are the differences between Angular 1 and Angular 2?

    Angular 2 is a complete rewrite of Angular 1, so there are many differences between the two frameworks. Some of the main ones are:

    • Angular 2 is written in TypeScript, which makes it easier to write large applications that scale well.
    • It’s faster and more efficient than Angular 1. This means that your app will load quicker and be able to handle more users at once without slowing down or crashing.
    • It has better support for mobile devices (including iOS devices), which makes it easier for you to build apps that work well across all kinds of screens–not just desktop computers!
    • Its internationalization features make it easy for anyone who speaks another language (or wants their website/app translated)

    Why use Angular 2 over other JavaScript frameworks?

    Angular 2 is a complete rewrite of Angular 1. It has been designed from the ground up to be faster, more scalable, and more flexible than its predecessor. In addition to being cross-platform (available on Windows 8 or later as well as OS X 10.9 or later), it’s also written in TypeScript which allows you to write your code in plain JavaScript but have it transpile down into ES5 for use in browsers that don’t support ES6/ES2015+.

    Angular 2 uses components rather than controllers or directives like its predecessor did; this means that if you want something on your page such as an input field then all you need is instead of having to add something like ng-controller=”MyController” ng-model=”userInput” etc…

    How does Angular differ from other MVC frameworks?

    • Angular is a client-side framework.
    • Angular is a TypeScript framework.
    • Angular is a component-based framework, which means that every component has its own scope and template, but it can communicate with other components through their inputs and outputs.
    • Angular uses the concept of “dynamic” DOM manipulation to update the view whenever there is any change in data model or event handler functions (such as click).

    What is the difference between an HTML template and a component?

    The difference between an HTML template and a component is that templates are used to render views, while components are used to render views and inject functionality. Templates can be reused throughout your application, but they cannot contain any logic. Components, on the other hand, are reusable building blocks for larger applications. Components are also more flexible because they give you access to the entire Angular 2 framework (e.g., NgFor).

    What is a controller in Angular 2?

    Angular 2 uses the concept of a controller to manage the data and behavior of a view. It’s responsible for defining the logic for an application, responding to user events, controlling the flow of an application and containing reusable code.

    The controller should be able to access any service or resource required by its associated view(s). This means that if you want some data from your server then this should be provided through dependency injection (DI) in order for it to work properly within our controllers.

    What are the basic building blocks of an Angular 2 application?

    The basic building blocks of an Angular 2 application are components, modules, templates and styles.

    Components are the building blocks of an Angular 2 application. They’re used to build out the user interface of an application and encapsulate logic as well as presentation (HTML).

    Modules are used to organize code and dependencies in your applications. Modules can also be used as namespacing mechanism for classes or components that you want to share between different parts of your app but don’t want them leaking into other parts where they may cause conflicts with existing code or naming conventions

    How do you import modules into an Angular 2 application?

    To import modules into an Angular 2 application, you can use the import statement. The following example imports the FormsModule from external libraries:

    import { FormsModule } from ‘@angular/forms’;

    To import modules from a local directory, use the src attribute with a path to your JavaScript file or directory:

    import { AppComponent } from ‘./app/’;

    What is the difference between @NgModule, @Injectable and @Component decorators in Angular 2 applications?

    The @NgModule decorator is used to define the entry point for an Angular application. The entry point is an NgModule class, which you can use to import other modules, configure your application and register components.

    @Injectable() is used to declare injectable services in Angular 2 applications. It helps you create custom services that can be injected into different components throughout your app’s hierarchy tree using dependency injection (DI).

    The @Component() decorators are used to create an Angular component. A component is a self-contained chunk of code that represents some part of your application’s user interface (UI).

    Knowing what questions to expect in your interview will give you a huge advantage in getting hired

    What’s the best way to prepare for an interview?

    First, know what questions you are going to be asked. There are many ways of doing this:

    • You can research similar job postings on sites like Glassdoor or Indeed and see which ones have been asked in previous interviews.
    • You can ask a friend or colleague who works at the company if they’ll let you take a look at their interview guide.
    • If all else fails, just Google “angular 2 interview questions” and hope for the best!

    Once you know what might be asked of you during your interview(s), it’s time to start practicing answering them until they become second nature–just like riding a bike! There are several ways this could happen:

    We hope this article has helped you prepare for your next Angular 2 interview. If you have any questions, please leave a comment below and we’ll be happy to answer them!


    angular 2 interview questions: How To Answer Angular 2 Interview Questions


    Angular 2 is a new framework for developing web applications. It was designed to address the shortcomings of Angular 1, which makes it much easier to develop apps with.

    What is Angular 2?

    Angular 2 is a framework for building web applications. It was developed by Google and it’s an open source framework. Angular 2 can be used to build scalable, maintainable, single page applications (SPA).

    What are the advantages of Angular 2?

    With Angular 2, you can build applications that are more flexible and easier to learn. The framework is faster and more modular than its predecessor, which means your code will be more readable and maintainable.

    Angular 2 also offers better support for mobile devices than any other JavaScript framework out there today. It’s built on top of Google’s Dart programming language which makes it possible for developers who know Java or C# (the two most popular languages) to use their existing knowledge when writing apps with Angular 2!

    You’ll also get access to great documentation from Google itself–one of the best companies in terms of providing support via online resources like tutorials or video courses on Lynda (which we love).

    Can you provide some examples of Angular 2 Enterprise apps that are being used today?

    • Uber
    • Netflix
    • Google, Microsoft and Facebook. These companies all use Angular 2 in their applications and websites as well.

    How do you integrate a module with a Service-based architecture in Angular 2?

    In this example, let’s say that you have a module called services. To integrate it with your Angular 2 application, you will need to:

    • Import the service module into your app entry point file (e.g., main.ts).
    • Create a service by extending from the Service class and implementing its methods with logic that performs some useful task in your application (e.g., getData()).
    • Register this new service by calling Dependency Injection (DI) and passing in DI providers like NgModule or Injectable(). You can then inject it into any component of your choosing by using dependency injection syntax such as { @Inject(‘serviceName’) } within its constructor or methods

    Is there any benefit to using Abstracts in Angular 2?

    Abstracts are used to share code between components. This is helpful if you want to create a base class for your components, services, or directives.

    Abstracts can also be used when you want to write your own custom decorator in Angular 2.

    Can you give me an example of when you might want to use the Component() method when creating a component in Angular 2?

    The Component() method is a core feature of Angular 2 and it’s important to know how to use it when creating components.

    The Component() method allows you to create a component with one line of code, instead of having to write out all the different parts individually. This can be especially helpful if you have multiple components that share similar code or functionality.

    You use this method by calling `@Component`, followed by an object literal containing your component’s name and any other properties or methods that should be added as part of its configuration:

    When would you use the host property in your Angular 2 app?

    The host property can be used to access the DOM element that contains a component, directive or pipe. For example:

    • If you have a tag on your page, you can use the host property to get its DOM element.
    • If your app has an attribute directive such as [my-custom-attribute]=”true” then this will create an attribute on the , so we can also use host to access it here as well!


    You should be able to answer all of the above questions.

    You should also be able to explain why you chose the answers that you did, and how they relate to the question asked.


    We hope this article has helped you understand how to answer Angular 2 interview questions. Remember that the most important thing is to be honest and confident in your answers, and if you don’t know something then say so!

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