Introduction

React Hooks are functions that let you use state and other React features without writing a class. Before Hooks, React had class components and functional components, with class components being the only way to manage state, lifecycle methods, and side effects. With the introduction of Hooks in React 16.8, developers can now use the same features without writing a class component, making the code more readable, easier to maintain, and less verbose.

const [count, setCount] = useState(0);

Why Hooks?

Hooks solve a wide variety of seemingly unconnected problems in React that we’ve encountered over five years of writing and maintaining tens of thousands of components. They allow functional components to have a state and side effects, which was previously not possible. React’s development team wanted to make React simpler and easier to use for developers, especially newcomers, by eliminating the complexity of class components.

There are several reasons to love Hooks:

• Simplicity: Hooks are just JavaScript functions, which makes them easier to test and reuse across components.
• Cleaner code: You can organize logic inside a component without dealing with the lifecycle methods and the complexities of class-based components.
• Reusable logic: Custom hooks let you extract and share logic between components, which is hard to do with classes.

Example of UseState Hook

The useState hook allows you to add state to functional components. Here’s an example of how to use it to create a simple counter:

        import React, { useState } from 'react';

        function Counter() {
          const [count, setCount] = useState(0);

          return (
            

              
You clicked {count} times
               setCount(count + 1)}>Click me
            
          );
        }
      

Conclusion

React Hooks have revolutionized how we approach building React applications, making it possible to create reusable, simple, and effective components without the need for class components. As you continue to explore React, you'll find that Hooks offer a more intuitive and modern way to manage state, side effects, and other common concerns in React applications.