function CanvasRender(options, canvasElement) { this.options = options this.context = canvasElement.getContext('2d') } CanvasRender.prototype.draw = function (image) { this.context.drawImage(image, 0, 0) } CanvasRender.prototype.clear = function () { var width = 300 var height = 300 ctx.clearRect(0, 0, width, height) } module.exports = CanvasRender