Javascript FireCracker Animation

|| FireCracker Animation Using JavaScript ||

#CODE :

<!DOCTYPE html>
<html>
<head>
<title>JavaScript FireDesign</title>
<style type="text/css">
body{
background: #000;
margin: 0;
width: 100%;
overflow: hidden;
}
</style>
</head>
<body>
<canvas></canvas>
<script type="text/javascript">
var t =0;
var c = document.querySelector("canvas");
var $ = c.getContext('2d');
c.width = window.innerWidth;
c.height = window.innerHeight;
$.fillStyle = 'hsla(0,0%,0%,1)';

window.addEventListener('resize',function(){
c.width = window.innerWidth;
c.height= window.innerHeight;
},false);

function draw(){
$.globalCompositeOperation = 'source-over';
$.fillStyle = 'hsla(0,0%,0%,.1)';
$.fillRect(0,0,c.width,c.height);
var foo,i,j,r;
foo = Math.sin(t) * 2* Math.PI;
for(i=0;i<400;++i){
r = 400 * Math.sin(i * foo);
$.globalCompositeOperation = '';
$.fillStyle = 'hsla('+i +12 + ',100%,60%,1)';
$.beginPath();
$.arc(Math.sin(i) * r + (c.width/2),
Math.cos(i) * r + (c.height/2),
1.5,0,Math.PI * 2);
$.fill();
}
t += 0.000005;
return t%= 2 * Math.PI;

};
function run(){
window.requestAnimationFrame(run);
draw();
}
run();
</script>
</body>
</html>

#OUTPUT:

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