A React counter app

counter.js

import React, { useState } from 'react';

const Counter = () => {
  const [count, setCount] = useState(0);
  
  const handleIncrement = () => {
    const prevCount = count;
    setCount(prevCount + 1);
  }
  
  const handleDecrement = () => {
    const prevCount = count;
    setCount(prevCount - 1);
  }
  
  return (
    <div>
      <h2>{count}</h2>
      <button onClick={handleIncrement}>Add One</button>
      <button onClick={handleDecrement}>Subtract One</button>
    </div>
  )
}