Anguler framework interview questions with answer
Angular framework tutorial
Beginner's guide to Angular
Angular framework for web development
Angular framework basics
Angular framework explained
Angular vs. other frameworks
Building web applications with Angular
Angular best practices
Angular architecture
Angular components and modules
Good morning, I am Professor Vishnu Narayan Saxena. In today’s class we will discuss ten common interview questions for Angular framework, along with sample answers:
1. What is Angular? Angular is a popular open-source web application framework that allows developers to build complex, scalable, and dynamic web applications using TypeScript. It is maintained by Google and provides a wide range of features, including declarative templates, dependency injection, and two-way data binding.
2. What is the difference between AngularJS and Angular? AngularJS is the first version of Angular and was released in 2010. It is a JavaScript-based framework that uses the Model-View-Controller (MVC) design pattern. Angular, on the other hand, is a complete rewrite of AngularJS and uses the Model-View-ViewModel (MVVM) pattern. It is built using TypeScript, which provides more features and better performance than JavaScript.
3. What is a component in Angular? A component is a building block of an Angular application. It consists of an HTML template, a TypeScript class, and a set of CSS styles. Components are used to create user interfaces and can be reused throughout the application.
4. What is a service in Angular? A service is a singleton object in Angular that provides functionality to multiple components. It can be used to share data between components, communicate with a server, or perform other tasks. Services are typically injected into components using dependency injection.
5. What is dependency injection in Angular? Dependency injection is a design pattern in which an object receives its dependencies from an external source rather than creating them itself. In Angular, dependency injection is used to provide components with the services they need to function.
6. What is a module in Angular? A module is a logical container for organizing components, services, and other Angular artifacts. It is used to group related functionality together and can be used to import external modules and components.
7. What is a directive in Angular? A directive is a special type of component in Angular that allows you to extend the behavior of an HTML element. Directives can be used to create custom HTML elements, apply styles dynamically, or modify the behavior of existing elements.
8. What is two-way data binding in Angular? Two-way data binding is a feature in Angular that allows changes made to a component property to be automatically reflected in the associated view and vice versa. It is achieved using the [(ngModel)] directive.
9. What is Angular CLI? Angular CLI is a command-line interface tool that simplifies the process of creating and managing Angular applications. It provides a set of commands for creating components, services, and other Angular artifacts, as well as for building, testing, and deploying applications.
10. How does Angular optimize application performance? Angular provides a range of performance optimization techniques, including lazy loading, Ahead-of-Time (AOT) compilation, tree shaking, and change detection. These techniques help to minimize the size of the application and reduce the time it takes to load and render. Additionally, Angular provides tools for profiling and debugging performance issues.