Most Common Angular Interview questions asked for a job

After computer science engineering, angular JS has emerged as one of the most profitable career paths available today. We'll talk about the most typical Angular interview questions in this article.Keep up with new developments in coding languages like JavaScript, TypeScript, and HTML.Know the business you are applying to by doing some research. Examine what kinds of applications and projects the organisation creates that could profit from utilising the Angular framework.Get ready for a range of application-based questions. As some interviewers can want to evaluate your programming skills, practise showcasing your ability.Get clear explanations in the form of presentations, definitions, and examples. Additionally, you receive individualised comments and thorough evaluations of your work.

You can refer to the following angular interview questions and answers to prepare for an Angular interview. We have provided sample answers to the most common questions asked in an Angular interview.

1. What is Angular JavaScript?

This is one of the most general Angular interview questions that the interviewer asks to analyze what you know about the framework.

Sample Answer:

Angular JavaScript is a front-end web framework maintained by Google. Initially, it was started as a project but now it has emerged as an open-source JavaScript framework. It is used to build dynamic single-page applications on the web. AngularJS is entirely based on HTML and JavaScript syntax.

2. How familiar are you with Angular?

This is one of the most common Angular interview questions. This question intends to check your familiarity with angular. You need to frame your answer by mentioning your past experiences in this field. Mention how long you have been accustomed to using angular and how it has benefited you.

Sample Answer:

I have been using Angular for the last 2-years for my business operations. It has helped me design patterns, and develop web structures for my business venture. Angular has been the key reason for establishing my online business and creating engaging and pristine quality websites and applications.

3. What does data binding refer to?

The interviewer may ask this question to evaluate your efficiency in the Angular framework.

Sample Answer:

Data binding is the synchronization phenomenon between the model and view. It lets an internet user manipulate the elements of a web page using a web browser. Data binding is one of the most important features of Angular as it allows for communication between the DOM that you’re developing and the components, and it consists of four main forms. The forms are two-way, property, event, and string interpolation data binding.

4. Can you describe what scope is in AngularJS?

The interviewer may seek to identify your knowledge about angular by asking these types of Angular interview questions.

Sample Answer:

The scope of AngularJS is the binding part between HTML (View) and JavaScript (Controller). It is a built-in object that contains application data and objects. It allows to assign a value or function to an object created inside the controller function. The scope acts as a medium between the controller and view. It transfers data from the viewer to the controller and vice-versa.

5. What is Angular used for?

The interviewer often asks this question during the interview as it is one of the Angular interview questions that stress finding the applicative knowledge of the candidate.

Sample Answer:

Angular JS is used for building single-page applications in a clean and maintainable way. It is used for developing dynamic and engaging web applications with the help of several features offered by Angular. Angular helps to create an intuitive and declarative application interface that efficiently uses Model-View-Controller (MVC) model.

6. What’s the difference between Angular and AngularJS?

This is one of the Angular interview questions that checks your understanding and differentiation power on different versions. The answer should be crisp and clear and the points should clarify the differences properly.

Sample Answer:

AngularJS uses a slightly different language than Angular. However, the other differences between Angular and Angular JS are:

• The language used in Angular is TypeScript, while Angular JS uses JavaScript.
• Angular is component-based, it makes use of components and directives while Angular JS supports Model-View-Controller (MVC) model.
• Angular supports all mobile browsers but Angular JS doesn’t support mobile browsers.
• Dependency injection is supported in Angular, while it is not supported in Angular JS.
• Angular makes it easy to develop and maintain applications easily while Angular JS is quite difficult to manage.

7. What are template expressions?

The interviewer checks a candidate’s understanding of different attributes of the Angular framework by asking these types of Angular interview questions.

Sample Answer:

Template expression is the value-producing expression in Angular. It is represented using double curly braces ‘{{ }}’. This expression is executed by Angular and is used for assigning it to a property of a binding target. The binding target can be an HTML element, a component, or a directive.

8. What happens when a script tag is used inside a template?

The interviewer may want to detect your optimization skills in the Angular framework. It also lets the interviewer know how efficaciously you can operate the framework.

Sample Answer:

When a script tag is used inside a template, Angular validates the value as unsafe and automatically proceeds to sanitize it. The script tag is eradicated but the text content is kept safe. This obliterates the risk of script injection attacks. If still the script tag is being used it will be ignored and a warning will appear on the browser console.

9. Can you tell me what directives are in Angular?

The interviewer looks at how clear the candidate is with the different features and elements of angular. This is also one of the important Angular interview questions. as it enables the interviewer to check whether the candidate is clear with the directives and components of angular.

Sample Answer:

Directives refer to the angular attributes that enable a user to create new HTML syntax specific to their developing applications. Directives are executed when they are found by the angular compiler in DOM. Angular supports three kinds of directives namely:

• Component Directives
• Structural Directives
• Attribute Directives

10. Define Metadata?

The interviewer may ask this question to scrutinize the candidate’s in-depth knowledge of Angular JavaScript.

Sample Answer:

Metadata enables to process a class in Angular. It is used to configure the expected behavior of a class. In Angular, a component acts as a class when introduced. It can be processed as a class with the help of metadata. Using a decorator, metadata can be attached to TypeScript.

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