agiveygives

import React from 'react';

const TestComponent = () => {
  const [count, setCount] = React.useState(0);

  return (
    <h3>{count}</h3>
    <span>
      <button id="count-up" type="button" onClick={() => setCount(count + 1)}>Count Up</button>
      <button id="count-down" type="button" onClick={() => setCount(count - 1)}>Count Down</button>

agiveygives

import React from 'react';

class TestComponent extends React.PureComponent {
  constructor(props) {
    super(props);
    this.state = { count: 0 };
  }
  
  render() {
    return (