#myCanvas
bezierCurveTo
20,100,200,100,200,20|20,100,200,200,200,20|20,100,200,300,200,20|20,100,200,500,200,20|20,100,200,0,200,20|20,100,200,-100,200,20|20,100,200,-300,200,20|20,100,200,-500,200,20
400
ctx.beginPath(); ctx.moveTo(20,20); ctx.bezierCurveTo(#val); ctx.stroke();