// create a CanvasAnimater object that targets a canvas element with id='myCanvas'
let canvasAnimater = new CanvasAnimater('myCanvas');

// get the '2D' rendering canvas context
let ctx = canvasAnimater.context;

// define and set a draw function that draws a black 100x100 rectangle
canvasAnimater.draw = function () {
    
    ctx.fillStyle = 'black';
    ctx.fillRect(0, 0, 100, 100);  
  
}

// render the animation
canvasAnimater.animate();