Top Angularjs Interview Questions and Answers

AngularJS Interview Questions and Answers for beginners and experts. List of frequently asked AngularJS Interview Questions with answers, we hope these interview questions and answers are useful and will help you to get the best job in the web development. Hope this blog regarding angularjs interview questions will help to crack the interview with ease. If you want to learn Practical AngularJS Training then please goes through this AngularJS Classes in Pune.

Que.1. Explain the architecture of AngularJs?

Ans: AngularJS is architecture on 3 components. They are

• The Template (View)
• The Scope (Model)
• The Controller (Controller)

AngularJS extends HTML attributes with Directives and binds data to HTML with Expressions.

Que.2. How to create a service in AngularJs?

Ans: The service in AngularJS is created by registering it with the module it is going to operate in. There are three ways to create an angular service. They are:

• Factory
• Service
• Provider

Que.3. Explain Event in AngularJs, List some events you have worked in AngularJs?

Ans: The AngularJS framework includes certain directives that can be used to provide the custom behavior on various DOM events. Some of the events are:

• ng-click
• ng-keyup
• ng-keydown
• ng-keypress
• ng-dblclick
• ng-mousedown
• ng-mouseleave
• ng-mouseenter
• ng-change

Que.4. How AngularJs is different from JQuery?

Ans:  AngularJS is a framework with key features like models, two-way binding, directives, routing, dependency injections; unit tests etc., whereas the JQuery is a library used for DOM manipulation with no two-way binding features

Que.5. What is Angular mainly used for?

Ans: Angular is typically used for the development of SPA which stands for Single Page Applications. Angular provides a set of ready-to-use modules that simplify the development of single page applications. Not only this, with features like built-in data streaming, type safety, and a modular CLI, Angular is regarded as a full-fledged web framework.

Que.6. What do you understand by AngularJs?

Ans: AngularJS is a JavaScript framework that is used for making rich and extensible web applications.

It runs on plain JavaScript and HTML; hence you don’t need any other dependencies to make it work. AngularJS is perfect for Single Page Applications (SPA). It is basically used for binding JavaScript objects with HTML UI elements.

Que.7. Distinguish between AngularJs and JavaScript expressions.

Ans: There are several differences between AngularJs and JavaScript expressions:

• We can write AngularJs expressions in HTML, but we cannot write JavaScript expressions in HTML.
• We cannot use conditional iterations, loops, and exceptions in AngularJs, but we can use all of these conditional properties in JavaScript expressions.
• Filters are supported in AngularJs whereas filters is not supported in JavaScript.

Que.8. What are the Angular Modules?

Ans: The angular modules collectively define an angular application where we can write the angular code.

Modules contain the different parts of an angular application. A module is created by angular. Module functions in angular.

Que.9. What are the binding directives in AngularJs?

Ans: The binding directives include:

• ng-bind
• ng-bind-html
• ng-bind-template
• ng-non-bindable
• ng-model

Que.10. What is a controller in AngularJs?

Ans: A controller is a JavaScript function which is bound to the specified scope. Angular instantiates the new controller object and injects the new scope as a dependency.

A controller can be used to set up the initial state of the scope object and to add behavior to the object.