This book follows a simple format: it's a walk-through of building React applications using a test-driven approach. We'll touch on many different parts of the React experience, including building forms, composing interfaces, and animating elements. We'll also integrate React Router, Redux, and GraphQL, all guided by tests. The focus isn't on how these features of React work, but rather on how to test them and make sure you're using them with confidence.
Modern JavaScript programmers rely heavily on packages that other people have developed. This allows us to concentrate on innovating, not reinventing, the wheel. The downside, however, is that we don't always have a full understanding of the technologies we’re dealing with. We simply don't need to learn them.
Among other things, Test-Driven Development...