Wouldn’t it be helpful to have an idea of Angular 8 interview question types you can be asked during your next job interview? This article focuses on Angular 8 interview questions that will help you prepare for your next job interview. Fun fact: the same team at Google that made AngularJS made the Angular framework, and it has several versions!
Angular 8, being very similar to earlier versions of Angular, is useful in creating dynamic web applications and is a client-side TypeScript based framework. Angular 8 has more extensive features than the previous versions and hence is in demand in MNCs and the software industry.
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We've compiled a list of the most frequently asked Angular 8 interview questions for new and experienced developers in this article. These questions cover basic and advanced Angular 8 concepts. Let's take a look at what we're going to learn:
Take a look at Angular Interview Questions you must prepare for in 2022.
Let us begin with some sample Angular 8 interview questions and answers to get an idea of the types of questions that can be asked in your tech interview:
Every time we re-render, Virtual DOM creates a tree from scratch. But incremental DOM requires no memory to re-render the view as long as the DOM isn’t changed, and the memory has to be allocated only when the DOM nodes are added or deleted. The size of the memory allocation is also proportional to the size of the change in DOM.
The Angular TestBed or ATB is a higher-level testing framework exclusively for Angular, which helps us smoothly test behaviors that depend on Angular Framework. It provides a dynamically-constructed Angular test module that emulates an Angular @NgModule.
You can use the command: npm install -g @angular/CLI to install Angular.
You can use the command: ng new applicationName to create an Angular 8 application.
The command ng serve can be used to load and run any Angular application.
Check the top Angular 2 Interview Questions and topics here.
Here are some top advanced Java Angular 8 interview questions for experienced developers:
Redux is a way to manage the application state and improve the maintainability of asynchronicity in our application. It provides a single truth source for the application state and a unidirectional flow of data change.
Some utility functions RxJS library provides that help us create and work with observables are filtering streams, mapping values to different types, creating multiple streams, iterating through the values in a stream, and converting code into observables for async operations.
A one-way Data Binding technique that helps us in:
Template-driven forms are easy to use, but they are not as scalable as Reactive forms. You can use them when scalability is not an issue, and you need to add even a simple form to your app or when your applications need some logic and form.
Some additional features offered by Angular 8 compared to previous Angular versions are:
Go through the top Angular 7 Interview Questions to prepare for your next interview.
Take a look at these sample Angular 8 interview questions to assess your basic preparation level:
Here’s a comprehensive guide to Angular 6 Interview Questions.
Try your hands at these tricky Angular 8 interview questions once you can answer the basic questions:
We hope that these Java Angular 8 interview questions on basic and advanced concepts will help you prepare for your technical interview. To ace your coding interview, master the fundamentals of Angular 8.
Q1. How old is Angular 8?
Angular 8 was released relatively recently on 28th May 2019. Angular 8 offers some additional features over the previous versions of Angular and Angular CLI can easily be upgraded to the Angular 8 version.
Q2. What are the advantages of Angular 8?
The advantages of Angular 8 are: better performance, debug templates, easier implementation, smoother clean code development, and support for multiple applications in a single domain.
Q3. How would you check whether the current version of Angular CLI is Angular 8 or not?
We can check the current version of Angular CLI using the command ng -version.
Q4. What is the command for installing Angular CLI?
We can install Angular CLI using the following command: np install -g @angular/cli
Q5. Describe the syntax for creating an application in Angular 8.
The syntax to create an app in Angular 8 is: ng new applicationName
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