Arrow
<!DOCTYPE html> <head> <style> body {/*from w w w . j a v a 2s . c o m*/ background: #dddddd; } #canvas { position: absolute; left: 0px; top: 0px; margin: 20px; background: #ffffff; border: thin solid #aaaaaa; } </style> </head> <body> <canvas id='canvas' width='1500' height='1500'> Canvas not supported </canvas> <script> let context = document.querySelector('#canvas').getContext('2d'); context.beginPath(); context.moveTo(0, 40); context.lineTo(240, 40); context.moveTo(260, 40); context.lineTo(500, 40); context.moveTo(495, 35); context.lineTo(500, 40); context.lineTo(495, 45); context.strokeStyle = "#000"; context.stroke(); </script> </script> </body> </html>