pure compoennt in react code example

Example 1: pure components

import { useHistory } from "react-router-dom";

function HomeButton() {
  const history = useHistory();

  function handleClick() {
    history.push("/home");
  }

  return (
    
      Go home
    
  );
}

Example 2: pure components

// index.js
import { Router } from 'react-router-dom'
import history from './history'
import App from './App'

ReactDOM.render((
  
    
  
), holder)