Book Image

Getting Started with Web Components

By : Prateek Jadhwani
Book Image

Getting Started with Web Components

By: Prateek Jadhwani

Overview of this book

Web Components are a set of APIs that help you build reusable UI modules that can operate in any modern browser using just Vanilla JavaScript. The power of Web Components lies in their ability to build frontend web applications with or without web frameworks. With this practical guide, you will understand how Web Components can help you build reusable UI components for your modern web apps. The book starts by explaining the fundamentals of Web Components' design and strategies for using them in your existing frontend web projects. You will also learn how to use JavaScript libraries such as Polymer.js and Stencil.js for building practical components. As you progress, you will build a single-page application using only Web Components to fully realize their potential. This practical guide demonstrates how to work with Shadow DOM and custom elements to build the standard components of a web application. Toward the end of the book, you will learn how to integrate Web Components with standard web frameworks to help you manage large-scale web applications. By the end of this book, you will have learned about the capabilities of Web Components in building custom elements and have the necessary skills for building a reusable UI for your web applications.
Table of Contents (14 chapters)
Title Page
7
Implementing Web Components using Polymer and Stencil

The concept of reusability

Before we even dive into the concept of reusability in Web Components, let's take a look at what reusability is with the help of an example. Let's take an example of an operating system, say Windows 10. Now, we all know there are a lot of computers. Some with the same hardware and some with different. But what makes this piece of software (Windows 10) reusable is its ability to being used again and again and in different scenarios without any issues. The exact same thing can be made to work for a Web Component. 

Yes, Web Components can be made extremely reusable. Let's say we have a Web Component <custom-header>. As the name indicates, it is a header. And most of the sites that we have ever visited have one or the other version of the same functional header. The functionalities are as follows:

  1. Show the logo.
  2. Clicking on the...