How Does Canvas Work In Code.Org

The canvas is an extremely robust resource that enables the creation of personalized computer programs. As a platform, provides students and hobbyists with a user-friendly interface to explore the world of computer programming.

What is the Canvas?

The canvas is essentially a drawing board that provides to help you visualize your code. Here, you can draw shapes, lines, and fill areas with color. To understand how to control this canvas, you need to understand the basic concept of computer graphics, which means knowing how pixels work.

Starting with the Canvas

To start using the canvas in, you’ll need to use the createCanvas() function. This function takes two parameters: the width and height of the canvas in pixels. For example, here’s how you might create a canvas that’s 400 pixels wide and 400 pixels tall:

                createCanvas(400, 400);

Drawing on the Canvas

Once you’ve created a canvas, you can start drawing on it by using various functions provided by For example, you could draw a circle by using the circle() function. This function takes three parameters: the x-coordinate of the circle’s center, the y-coordinate of the circle’s center, and the circle’s diameter. Here’s an example:

                circle(200, 200, 50);

You can fill the circle with color by using the fill() function before the circle() function. The fill() function takes three parameters: the red, green, and blue components of the color. Here’s an example:

                fill(255, 0, 0);
                circle(200, 200, 50);

In addition to circles, you can also draw rectangles, lines, and polygons, among other shapes.


The canvas in offers a lot of possibilities for creating custom computer programs. By understanding how to use it, you can create amazing graphics and animations. The key is to understand how pixels work and to become familiar with the functions provided by Happy coding!