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<!DOCTYPE html>↩
<head><meta charset="utf-8"></head>↩
<body>↩
<canvas id="canvas" width="200" height="200"></canvas>↩
<script>↩
let canvas = document.getElementById('canvas');↩
let ctx = canvas.getContext('2d');↩
for (let i=0; i<100; i+=50) {↩
let arr = new Uint8ClampedArray(Array(40000).fill(200));↩
createImageBitmap(new ImageData(arr, 100)).then(img => {↩
ctx.drawImage(img, i, i);↩
});↩
}↩
</script>↩
</body>↩