Spot the bug - #126: Lunar Sky Painter

programming web dev
1

Why is my starry night sky drawing an invisible moon?

const ctx = document.querySelector('canvas').getContext('2d');
ctx.fillStyle = '#fffa65';
ctx.arc(100, 100, 40, 0, Math.PI * 2);
ctx.fill();

Reply with what is broken and how you would fix it.