treehouse/static/js/sandbox.js

export const internals = {
    body: document.createElement("body"),
};

export function body() {
    return internals.body;
}

export function addElement(element) {
    body().appendChild(element);
}

export class Sketch {
    constructor(width, height) {
        this.canvas = document.createElement("canvas");
        this.canvas.width = width;
        this.canvas.height = height;
        this.ctx = this.canvas.getContext("2d");

        addElement(this.canvas);
    }
}