canvas-clear

JavaScript performance comparison

Revision 23 of this test case created by Thomas Giles

Info

Different methods for clearing the canvas.

Preparation code

<script>
  var c = document.createElement('canvas');
  c.width = c.height = 500;
  var ctx = c.getContext('2d');
  ctx.fillStyle = 'rgba(0,0,0,1)';
</script>

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Testing in unknown unknown
Test Ops/sec
clearRect
ctx.clearRect(0,0,500,500);
 
pending…
fillRect
ctx.fillRect(0,0,500,500);
 
pending…
set width
c.width = c.width;
 
pending…

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Revisions

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