Javascript DOM HTML Canvas Object create

Introduction

We can create a <canvas> element by using the document.createElement() method:

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<!DOCTYPE html>
<html>
<head>
<style>
canvas {//from w  ww .  ja v a2 s .c  om
  border: 1px solid black;
}
</style>
</head>
<body>

<button onclick="myFunction()">Test</button>

<p>Click the button to create a CANVAS element and draw a red rectangle.</p>

<script>
function myFunction() {
  var x = document.createElement("CANVAS");
  var ctx = x.getContext("2d");
  ctx.fillStyle = "#FF0000";
  ctx.fillRect(20, 20, 150, 100);
  document.body.appendChild(x);
}
</script>

</body>
</html>



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