JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>HTML5 Particles</title>
  <style>
    body {
      margin: 0;
    }
  </style>
</head>
<body>
  <canvas id="canvas"></canvas>
</body>
</html>

JavaScript

const buffer = document.createElement('canvas');
const context = buffer.getContext('2d');
const canvas = document.getElementById('canvas');
const screen = canvas.getContext('2d');

// initialize
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
buffer.width = window.innerWidth;
buffer.height = window.innerHeight;
canvas.style.position = 'absolute';
canvas.style.top = '0';
canvas.style.left = '0';
canvas.style.zIndex = '1001';

// draw a circle
context.beginPath();
context.arc(50, 50, 10, 0, Math.PI * 2);
context.fillStyle = 'rgba(156, 39, 176,1)';
context.fill();

// render to screen canvas
screen.drawImage(buffer, 0, 0);

// clear canvas when click
canvas.addEventListener('click', () => {
  context.clearRect(0, 0, buffer.width, buffer.height);
  screen.drawImage(buffer, 0, 0);   // not working
  // only working with `screen.clearRect(0, 0, canvas.width, canvas.height);`
})