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

This is what I use, regardless boundaries and matrix transformations:

function clearCanvas(canvas) {
  const ctx = canvas.getContext('2d');
  ctx.save();
  ctx.globalCompositeOperation = 'copy';
  ctx.strokeStyle = 'transparent';
  ctx.beginPath();
  ctx.lineTo(0, 0);
  ctx.stroke();
  ctx.restore();
}

Basically, it saves the current state of the context, and draws a transparent pixel with copy as globalCompositeOperation. Then, restores the previous context state.