Build stylish, slick, and speedy-to-load user interfaces in React without writing custom classes. React Hooks are a new category of functions that help you to manage state, lifecycle and side effects within functional components.  React Hooks in Action teaches you to use pre-built hooks like useState, useReducer and useEffect, and to build your own hooks.Your code will be more reusable, require less boilerplate, and you’ll instantly be a more effective React developer.   About the technology   React Hooks promise to make React programmers even more productive.Hooks are a collection of pre-built and custom functions that give you a simpler API for working with key React functionalities. Hooks cleanly encapsulate side effects, make it easier to reuse components between projects, and result in less code overall. These new features represent a fundamental evolution in how the React library functions, so even experienced React developers will want to get up to speed with Hooks.   About the