#myCanvas
bezierCurveTo
20,100,200,100,200,20|20,150,200,100,200,20|20,200,200,100,200,20|20,300,200,100,200,20|20,500,200,100,200,20|20,-100,200,100,200,20|20,-200,200,100,200,20
400
ctx.beginPath(); ctx.moveTo(20,20); ctx.bezierCurveTo(#val); ctx.stroke();