Book Image

Modern JavaScript Web Development Cookbook

By : Federico Kereki
Book Image

Modern JavaScript Web Development Cookbook

By: Federico Kereki

Overview of this book

JavaScript has evolved into a language that you can use on any platform. Modern JavaScript Web Development Cookbook is a perfect blend of solutions for traditional JavaScript development and modern areas that developers have lately been exploring with JavaScript. This comprehensive guide teaches you how to work with JavaScript on servers, browsers, mobile phones and desktops. You will start by exploring the new features of ES8. You will then move on to learning the use of ES8 on servers (with Node.js), with the objective of producing services and microservices and dealing with authentication and CORS. Once you get accustomed to ES8, you will learn to apply it to browsers using frameworks, such as React and Redux, which interact through Ajax with services. You will then understand the use of a modern framework to develop the UI. In addition to this, development for mobile devices with React Native will walk you through the benefits of creating native apps, both for Android and iOS. Finally, you’ll be able to apply your new-found knowledge of server-side and client-side tools to develop applications with Electron.
Table of Contents (15 chapters)

Composing components

Let's go back to the ExpandableCard, which we didn't quite finish before. We could certainly do a regions-specific card, but it seems that the general concept of a card that can be expanded or condensed is useful enough that we could prefer a more general solution. React allows us to do that via composition, as we'll see in this section.

How to do it...

The component we want to create could have any kind of content. (The same idea would apply to generic dialog boxes, header sections, or sidebars, by the way.) Instead of creating a base class and using inheritance to create multiple derived classes, React allows you to pass a special children prop (this.props.children) so that you can pass...