Book Image

React 17 Design Patterns and Best Practices - Third Edition

By : Carlos Santana Roldán
2 (1)
Book Image

React 17 Design Patterns and Best Practices - Third Edition

2 (1)
By: Carlos Santana Roldán

Overview of this book

Filled with useful React patterns that you can use in your projects straight away, this book will help you save time and build better web applications with ease. React 17 Design Patterns and Best Practices is a hands-on guide for those who want to take their coding skills to a new level. You’ll spend most of your time working your way through the principles of writing maintainable and clean code, but you’ll also gain a deeper insight into the inner workings of React. As you progress through the chapters, you’ll learn how to build components that are reusable across the application, how to structure applications, and create forms that actually work. Then you’ll build on your knowledge by exploring how to style React components and optimize them to make applications faster and more responsive. Once you’ve mastered the rest, you’ll learn how to write tests effectively and how to contribute to React and its ecosystem. By the end of this book, you'll be able to avoid the process of trial and error and developmental headaches. Instead, you’ll be able to use your new skills to efficiently build and deploy real-world React web applications you can be proud of.
Table of Contents (21 chapters)
1
Hello React!
4
How React Works
10
Performance, Improvements, and Production!
19
About Packt

CSS in JavaScript

In the community, everyone agrees that a revolution took place in the styling of React components in November 2014, when Christopher Chedeau gave a talk at the NationJS conference.

Also known as vjeux on the internet, Christopher works at Facebook and contributes to React. In his talk, he went through all the problems related to CSS on the scale that they were facing at Facebook. It is worth understanding all of them because some are pretty common and they will help us introduce concepts such as inline styles and locally scoped class names.

The following is a list of the issues with CSS, basically problems with CSS at scale:

  • Global namespace
  • Dependencies
  • Dead code elimination
  • Minification
  • Sharing constants
  • Non-deterministic resolution
  • Isolation

The first well-known problem of CSS is that all the selectors are global. No matter how we organize our styles, using namespaces or a procedure such as the Block, Element, Modifier (BEM) methodology, in the end, we are always...