useState in React JS

Introduction

React is a popular JavaScript library for building user interfaces, and it provides several hooks that make it easier to manage state in functional components. One of the most fundamental hooks for state management is useState. In this blog post, we will explore what useState is, how to use it, and why it's essential for building dynamic and interactive React applications.

What is useState?

useState is a built-in React hook that allows functional components to manage state. Prior to the introduction of hooks in React 16.8, state management was primarily the domain of class components. Hooks were introduced to simplify state management in functional components, making it easier to share and manipulate stateful data.

In a nutshell, useState allows you to declare state variables in your functional components, and it returns an array with two elements: the current state value and a function to update it.