// 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;

// set the canvas width and height dimensions to 300x300
canvasAnimater.size(300,300)

// center the canvas in the window
canvasAnimater.center();

// define and set a draw function that fills the entire canvas with a black rectangle
canvasAnimater.draw = function () {
    
    let W = canvasAnimater.width;
    let H = canvasAnimater.height;
    
    ctx.fillStyle = 'black';
    ctx.fillRect(0, 0, W, H);  
}

// render the animation
canvasAnimater.animate();