ngle1, angleDiff1, startAngle2, angleDiff2) {
			const result = arcsOverlap(startAngle1, angleDiff1, startAngle2, angleDiff2);
			const canvas = document.createElement("canvas");
			document.body.append(canvas);
			canvas.width = canvas.height = 100;
			const ctx = canvas.getContext("2d");
			ctx.save();
			ctx.translate(canvas.width / 2, canvas.height / 2);
			const r = canvas.width / 2 * 0.9;
			ctx.beginPath();
			ctx.arc(0, 0, r, 0, Math.PI * 2);
			ctx.stroke();

			function drawArc(startAngle, angleDi