Angular 8 Interview Questions
Top Angular 8 Interview Questions and Answers
Angular 8 Interview Questions
In an Angular 8 interview, you may be asked questions about the key features and updates introduced in Angular 8, such as differential loading for faster application loading times, TypeScript 3.4 support, Ivy renderer opt-in preview for improved performance, lazy loading of routed modules, and Bazel support for compiling and testing applications. Additionally, be prepared to discuss topics like dependency injection, RxJS, forms handling, and Angular CLI commands to demonstrate your proficiency in working with Angular 8.
To Download Our Brochure: https://www.justacademy.co/download-brochure-for-free
Message us for more information: +91 9987184296
1 - What are the changes in Angular 8 compared to Angular 7?
Angular 8 introduced various improvements and new features such as the Ivy rendering engine, differential loading for faster startup performance, dynamic imports for better lazy loading capabilities, improved web worker bundling, and Bazel support for building and deploying applications.
2) Explain Ivy, the new rendering engine in Angular 8.
Ivy is Angular's new rendering engine that offers smaller bundle sizes, improved debugging capabilities, and increased performance. It allows for better tree shakable components, leading to faster runtime performance and improved application startup times.
3) How does Angular 8 support differential loading?
Angular 8 introduces differential loading which allows the browser to download and execute only the code that is necessary for the specific browser. This results in faster startup times for modern browsers while still supporting older browsers that require more traditional ES5 code.
4) What is lazy loading in Angular?
Lazy loading is a technique used in Angular to load JavaScript modules only when they are needed, typically when navigating to a specific route in the application. This helps improve application performance by reducing the initial bundle size and loading only the necessary code for the current view.
5) How does Angular 8 help with web worker bundling?
Angular 8 has improved web worker bundling, allowing developers to separate the application code from the web worker code. This separation enables better bundling strategies for web workers and improves overall application performance, especially for multi threaded tasks.
6) What is Bazel and how does it benefit Angular developers?
Bazel is a build tool that helps with the compilation, testing, and deployment of software projects. Angular 8 introduces support for Bazel, enabling developers to build and deploy applications faster and more efficiently. Bazel provides incremental builds, caching, and parallel execution, resulting in quicker development cycles and optimized output.
7) How does Angular CLI help developers in Angular 8?
Angular CLI (Command Line Interface) is a powerful tool that assists developers in setting up, developing, and deploying Angular applications. In Angular 8, CLI enhancements include the ng update command for updating dependencies, ng deploy to streamline the deployment process, and ng add for easily adding new features and capabilities to existing projects.
8) Can you explain the role of typescript in Angular development?
TypeScript is a superset of JavaScript that adds static typing and other features to the language. Angular is built using TypeScript and utilizes its strong typing system to provide better tooling, error checking, and overall developer experience. TypeScript helps catch errors during development and provides improved code navigation and refactoring capabilities.
9) How does Angular 8 improve performance compared to earlier versions?
Angular 8 focuses on performance optimization with features like Ivy rendering engine, differential loading, lazy loading, and improved web worker bundling. These enhancements lead to smaller bundle sizes, faster startup times, and overall better performance for Angular applications when compared to earlier versions.
10) What are some best practices for optimizing Angular applications?
To optimize Angular applications, developers should follow best practices such as using lazy loading for modules, enabling AOT (Ahead of Time) compilation, implementing server side rendering for SEO benefits, reducing bundle sizes by tree shaking and code splitting, and leveraging tools like Angular CLI for building and deploying applications efficiently. Additionally, optimizing API calls, using observables effectively, and following Angular style guides can further enhance performance and maintainability.
Browse our course links : https://www.justacademy.co/all-courses
To Join our FREE DEMO Session: Click Here
Contact Us for more info:
- Message us on Whatsapp: +91 9987184296
- Email id: info@justacademy.co
Mysql Queries Interview Questions And Answers
Interview Questions On Flows In Salesforce
Questions To Ask In A Marketing Interview
Java Web Services Interview Questions
Aws Glue Interview Questions
