const canvas = document.querySelector('canvas'); const ctx = canvas.getContext('2d'); function drawCircle(x, y, size) { ctx.fillStyle = 'white'; ctx.fillRect(0, 0, canvas.width, canvas.height); ctx.beginPath(); ctx.fillStyle = 'black'; ctx.arc(x, y, size, 0, 2 * Math.PI); ctx.fill(); } let x = 50; let y = 50; const size = 30; drawCircle(x, y, size); // Add your code here