useState Example - React Js

 

app.js:

import logo from './logo.svg';

import './App.css';

import React, {useState} from 'react';

function App() {

  const [data, setData] =useState(0)

 

 function updateData(){

    setData(data+1)

  }

  return (

    <div className="App">

      <h1>{data}</h1>

<button onClick={updateData}>Click Me</button>

    </div>

  );

}

export default App;