How to clear the canvas for redrawing

Question

After experimenting with composite operations and drawing images on the canvas I\'m now trying to remove images and compositing. How do I do this?

I need to clear th

Answer 1

A simple, but not very readable way is to write this:

var canvas = document.getElementId('canvas');

// after doing some rendering

canvas.width = canvas.width;  // clear the whole canvas