Do React Hooks replace state?

React Hooks: A transition of functions from stateless to stateful components .

How much of my React knowledge stays relevant? Hooks are a more direct way to use the React features you already know — such as state, lifecycle, context, and refs. They don’t fundamentally change how React works , and your knowledge of components, props, and top-down data flow is just as relevant.

Global Hook is a State Management for Functional Components . It is very useful in a big project. Because it is understandable, connectable to Components, or connects to a Function to call that automatically for every change that has happened in the State.