Angular Interview Questions for Beginners

1) What is Angular?

Ranked as the second most used Technology, Angular is a framework developed by Google aiming to assist in backward compatibility, enhanced usability, lesser coding, better HTTP library requests, and animation disability option. The open-source, front-end web development framework is based on HTML, CSS, and TypeScript and has various versions. It is also known as Angular 2+ and supports both JavaScript and TypeScript.

2) What are the essential building blocks of Angular?

Based on components, where the app component is the main component of the tree component system. Another essential block is modules, which couples all the associated components. App module is the main default module in Angular. Templates, derivatives, and services are the other essential blocks.

3) How does Angular differ from AngularJS?

Angular is based on TypeScript and supports mobile apps, while AngularJS is based on JavaScript and does not support mobile apps. Angular is based on modules, components, and directives, while AngularJS is based on MVC design patterns.

4) List a few Angular features:

Angular allows for parts to be created, tested, and integrated using Angular CSI.
Angular can be used for creating high-end animations without putting in a lot of coding.
It provides template syntaxes for UI.
It enables cross-platform application development.

5) List a few advantages of Angular:

Allows two-way data binding.
Allows adding custom animations, derivatives, and services.
Dependency Injection stands on a hierarchical structure.
Develops high-end client-side applications.
Template syntaxes and validations are supported.
RESTful services are facilitated, and a seamless event handling process is simplified.

6) What are the Angular Directives?

Directives allow the developers to write application-centric customized HTML syntax using derivatives. The directive functions are executed by the Angular compiler when a new HTML syntax is spotted, and the language is written in DOM. The three directive characteristics are attribute, component, and structural.

7) What apps should not be made with Angular?

Being a complex framework, Angular need not be used for more straightforward websites or short-times projects that do not need much-sophisticated UI and design. Since a complex framework is less flexible for simpler situations, and many tools are left unused, Angular should also not be used for microservice designs.

8) Why did Angular become so popular?

Apart from its simplicity of use and fewer codes required, Angular also helps manage the coding and prevent it from turning too complicated as the web design turns more sophisticated. It also aids in data handling. The components of Angular divide codes into smaller pieces, making them easier to manage and alter without affecting the rest program.

9) What Angular features are not found in other frameworks?

outing,
state management,
RXJS library
and HTTP services are a few features that are built-in Angular and need not be accessed individually.
HTML rendering of UI, which makes programming easier being a declarative language.

10) How are Angular expressions different from JavaScript expressions?

JavaScript can be written in HTML in Angular but not in JavaScript expressions.
A local scope is used to test Angular expressions, but Javascript expressions are evaluated against a global range.

Other useful articles: