the "myCanvas" canvas element is accessed using the getElementById() method, and the width and height properties are set to 500 and 300 pixels, respectively.

Note that changing the width and height of the canvas element will also clear the canvas, so any previous content on the canvas will be erased. If you need to resize the canvas without clearing it, you can create a new canvas element with the desired size and copy the content from the old canvas to the new canvas using the drawImage() method.