JSFiddle - React, Tailwind, and code Playground

HTML

<canvas id="canvas" width="640" height="480">
    No Canvas Support!
</canvas>
<div id="score">Escaped Balls: <span><strong></strong></span></div>

JavaScript

$(function() {
        
        var canvas = document.getElementById("canvas");
        var liveBalls = new Array();
        var escapedCount = 0;
    
        function createBall() {
            // create the ball image
            image = new Image();
            image.src = 'http://dl.dropbox.com/u/19593893/CDN/ball.png';
            
            // push a new ball object into the liveBalls array
            liveBalls.push({ image: image, 
                             x: Math.floor(Math.random()*580), 
                             y: 640, 
                             index: 0, 
                             speed: Math.floor(Math.random()*5) });
        }

        function draw() {

            // get the context we are going to draw to
            var context = canvas.getContext('2d');

            // clear the context to make sure we have a clean canvas
            context.clearRect(0, 0, 640, 480);
            
            // set the beatiful beach background
            var background = new Image();
            background.src = 'http://dl.dropbox.com/u/19593893/CDN/beach.jpg';
            
            // draw the background to the canvas
            context.drawImage(background, 0, 0, 640, 480);

            // keep track of our escaped balls with this array
            var escapedBalls = new Array();
            
            // for each of our live balls, see if the ball is still on the canvas, if it is,
            // move it up by the random speed of the ball.
            $.each(liveBalls, function(index, value) {
                this.index = index;
                this.y -= this.speed;
                if (this.y > -64) {
                    context.drawImage(this.image, this.x, this.y, 45, 45);
                }
                else {
                    // the ball is off the screen so add it to the escaped balls
                    // collection and increment the score
                    escapedBalls.push(this);
                    escapedCount++;
 ...