Draw a circle on the HTML5 canvas
Fetches the canvas element. Creates a 2D context. Clears the canvas, then sets the fill style to red and then creates a circle path using the arc method. Finally it fills the circle with the red color.with the selected color.
<!DOCTYPE HTML>
<html>
<head>
<style>
body {
margin: 0px;
padding: 0px;
}
</style>
</head>
<body>
<canvas id="myCanvas" width="600" height="300"></canvas>
<script>
var canvas = document.getElementById('myCanvas');
var ctx = canvas.getContext('2d');
ctx.clearRect(0, 0, canvas.width, canvas.height);
ctx.fillStyle = 'red';
ctx.beginPath();
ctx.arc(70, 75, 50, 0 * Math.PI, 2 * Math.PI);
ctx.fill();
</script>
</body>
</html>