28 - Working with Images, Shapes, and
Other Graphics
JavaScript can display different types of graphics, from JPG and PNG
files to shapes like
boxes and circles. One method is to use thecreateElement()method as shown in
chapter 26.
Manipulating the Canvas with JavaScript
Recall that the canvas element is used to create a container for
graphics.
With JavaScript, you can manipulate the container and draw graphics
dynamically.
To draw a canvas object, you use the getElementById() function to
access the canvas and the canvas.getContext to create the object.
<!DOCTYPE html>