Angular is a widely adopted technology to build innovative apps and software. Even the demand for Angular developers is on the rise. Before appearing for the interview, refresh your knowledge with these angular-based interview questions. Also, we recommend you get acquainted with Angular best practices to know the approach of a developer working on a live project.
Q: What exactly is Angular? What’s the purpose of Angular?
Ans. Angular is an open-source JavaScript framework that allows developers to build web apps. It was launched in 2009 and has since become one of the most popular frameworks in the market.
It was introduced to create a single framework that could be used for both mobile and web applications, with no need for additional plugins or libraries. Google and the Angular team support it. It provides an open-source development environment for developing web applications with dynamic user interfaces.
Q: What is the difference between Angular and React?
Ans. Angular uses directives to create reusable components. It is also one of the popular choices in the field to develop enterprise front-end applications. On the other hand, React uses functional programming and is often regarded as an excellent choice for building web applications that rely heavily on a single view. It is also worth noting that Angular is being used for web applications with a lot of interactive content. In opposed, React can be used for projects that are more static than interactive.
Q: What are the advantages of using Angular over other front-end frameworks?
Ans. Angular is a front-end JavaScript framework with many features that make it one of the most popular frameworks on the market. Among those features are its faster performance and better scalability. It also has several other development benefits that appeal to many developers today.
The Angular framework gives developers the ability to create applications from scratch or modify an existing application developed in ASP.NET, PHP, Node.JS, or other frameworks with relative ease. This can result in quicker development time for a given project and increased productivity for the developer. Angular also includes features that help speedily load the application.
Q: What are the main types of components in Angular?
Ans. There are three main types of components in Angular, which are following:
1) Directives: These are the essential components in Angular. They bind data to HTML elements and can be used as part of an HTML template or as standalone components.
2) Components: These are reusable blocks of code that can be placed anywhere in the application and can be used to create custom widgets, such as dropdowns, tabs, and accordions.
3) Services: These provide functionality that is not tied to any specific component or template but instead provides a service that other components or templates can access.
Q: What are SPAs? How can the finest SPAs be developed with Angular?
Ans. Single Page Applications haven’t been around long, but they have recently become more popular with the rise of mobile devices. Because it provides users with an experience similar to native apps without having to download them, it is gaining popularity among programmers due to its responsive design, which makes it look good on any device. It loads all of its content on a single page. They are usually designed to be used on mobile devices, and they can be accessed through a browser or an app. Using Angular best practices, world-class SPAs can be developed.
Q: What’s the purpose of templates in Angular app development?
Ans. Angular’s templates are a new way of constructing the model-view-controller (MVC) application. They are like HTML markups and can be used to define the structure of an Angular app. Templates were introduced to make it easier for developers to build apps as they are no longer required to write any JavaScript code or use angular. component(). Instead, they can use HTML markup and angular directives.
Q: What is Lazy Loading in Angular development?
Ans. Lazy loading is a feature that enables you to load only the parts of your application that are needed. This technique can be used in Angular applications to reduce page load speed and improve user experience.
Q: What are smart components, and how can they be used in Angular application development?
Ans. Angular Smart Components is a new feature that allows developers to create reusable components by making them easy to share across different applications. They can be utilized as building blocks for your application, and they can be reused and reused across various projects. This helps developers build their apps faster, reduces code re-work, and provides more reliable functionality.
Q: What are dumb components in Angular, and how can they be used?
Ans. Dumb components are Angular components that don’t have any logic or behavior. They are just used as containers for other components and provide the necessary data and functionality.
Dumb components can be used in many different ways, such as:
– Containers for other components
– Data providers
– Providers of services
– Providers of events
– Providers of state-
The parent componentDumb components are often used to create complex components with many child components, as dumb components don’t have any logic. They can also be used to encapsulate a complex component’s state and behavior.
Q: What is Ahead Of Time (AOT) in Angular app development?
Ans. Ahead Of Time is a compiler in Angular that converts your Angular HTML and TypeScript code into efficient JavaScript-based code when the browser fetches and runs the code. This way, applications are rendered faster.
Q: Why do we use AOT?
Ans. An Angular application is constructed using several components and their HTML templates. Due to these templates and features, AOT compilers are used so that browsers can process them directly.
Q: Why is Angular offered as a client-side framework?
Ans. Before Angular, VanillaJS, and jQuery were used to develop dynamic websites. With the development of technology, websites have become more complex in terms of features and functionalities. It was difficult for developers to cope with the requirements. Besides, there were no data handling characteristics. As a solution, Angular was introduced. As a result, developers could quickly develop complicated websites by dividing code into smaller parts called Components.
Q: What are the features of Angular that help a developer code the application smoothly?
Ans. Some of the features that make the development smoother are:
– Data binding: This feature allows you to bind data from your application to HTML elements on your page. This helps you avoid writing repetitive code and makes it easier for you to update your application without worrying about breaking anything.
– Dependency injection: This feature allows you to inject dependencies into your application without writing any code. You can also utilize this feature to create a new service or component in your application.
– Templates: This feature allows you to create an HTML template that your application can use without knowing any code. It also has a variety of helper functions like ng-repeat, ng-if, and ng-class.
Wrap Up
If you find this compilation of Angular-based interview questions insightful and informative, read our blog on Angular best practices, which will give you practical knowledge of app development and make you aware of the Angular developer’s approach.
EnProwess Technologies is a passionate team of angular developers and software development companies aiming to deliver innovative solutions. For more information, visit our visit.
Author Bio:
Chirayu Joshi is the CEO of EnProwess – an emerging custom software development company that offers mobile development, web app development, dedicated developers, and software testing service at a competitive price. His bold leadership and foresight have taken the company to great heights. He loves to read and share his insights on the tech industry.
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