Book Image

Learning Angular - Fourth Edition

By : Aristeidis Bampakos, Pablo Deeleman
5 (1)
Book Image

Learning Angular - Fourth Edition

5 (1)
By: Aristeidis Bampakos, Pablo Deeleman

Overview of this book

As Angular continues to reign as one of the top JavaScript frameworks, more developers are seeking out the best way to get started with this extraordinarily flexible and secure framework. Learning Angular, now in its fourth edition, will show you how you can use it to achieve cross-platform high performance with the latest web techniques, extensive integration with modern web standards, and integrated development environments (IDEs). The book is especially useful for those new to Angular and will help you to get to grips with the bare bones of the framework to start developing Angular apps. You'll learn how to develop apps by harnessing the power of the Angular command-line interface (CLI), write unit tests, style your apps by following the Material Design guidelines, and finally, deploy them to a hosting provider. Updated for Angular 15, this new edition covers lots of new features and tutorials that address the current frontend web development challenges. You’ll find a new dedicated chapter on observables and RxJS, more on error handling and debugging in Angular, and new real-life examples. By the end of this book, you’ll not only be able to create Angular applications with TypeScript from scratch, but also enhance your coding skills with best practices.
Table of Contents (17 chapters)
15
Other Books You May Enjoy
16
Index

Handling Errors and Application Debugging

Application errors are an integral part of the lifetime of a web application. They can occur either during runtime or while developing the application. Runtime errors may happen due to an HTTP request that failed or an incomplete HTML form. Development errors usually happen when we do not properly use a programming language or framework according to its semantics. In both cases, we need a mechanism for debugging the application to investigate and fix the error.

In this chapter, we will learn how to handle different types of errors in an Angular application and understand errors that come from the framework itself. We will learn how to debug and profile an Angular application using Angular DevTools. We will explore the following concepts in more detail:

  • Handling application errors
  • Demystifying framework errors
  • Debugging Angular applications