Book Image

Angular for Enterprise-Ready Web Applications - Second Edition

By : Doguhan Uluca
Book Image

Angular for Enterprise-Ready Web Applications - Second Edition

By: Doguhan Uluca

Overview of this book

This second edition of Angular for Enterprise-Ready Web Applications is updated with in-depth coverage of the evergreen Angular platform. You’ll start by mastering Angular programming fundamentals. Using the Kanban method and GitHub tools, you’ll build great-looking apps with Angular Material and also leverage reactive programming patterns with RxJS, discover the flux pattern with NgRx, become familiar with automated testing, utilize continuous integration using CircleCI, and deploy your app to the cloud using Vercel Now and GCloud. You will then learn how to design and develop line-of-business apps using router-first architecture with observable data anchors, demonstrated through oft-used recipes like master/detail views, and data tables with pagination and forms. Next, you’ll discover robust authentication and authorization design demonstrated via integration with Firebase, API documentation using Swagger, and API implementation using the MEAN stack. Finally, you will learn about DevOps using Docker, build a highly available cloud infrastructure on AWS, capture user behavior with Google Analytics, and perform load testing. By the end of the book, you’ll be familiar with the entire gamut of modern web development and full-stack architecture, learning patterns and practices to be successful as an individual developer on the web or as a team in the enterprise.
Table of Contents (19 chapters)
15
Another Book You May Enjoy
16
Index

Custom controls with ControlValueAccessor

So far, we've learned about forms using standard form controls and input controls provided by Angular Material. However, it is possible for you to create custom user controls. If you implement the ControlValueAccessor interface, then your custom controls will play nicely with forms and the ControlValueAccessor interface's validation engine.

We will be creating the custom rater control shown in the following screenshot, and will place it as a control on the first step of ProfileComponent:

Figure 11.12: The lemon rater user control

User controls are inherently highly reusable, tightly coupled, and customized components to enable rich user interactions. Let's implement one.

Implementing a custom rating control

The lemon rater will highlight the number of lemons selected dynamically as the user interacts with the control in real time. As such, creating a high-quality custom control is an expensive endeavor...