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<html><body><h1>HTML5 Canvas</h1><h2>The imgData.width Property</h2><canvas id="myCanvas" width="300" height="150" style="border:1px solid grey"></canvas><p id="demo"></p><script>const c = document.getElementById("myCanvas");const ctx = c.getContext("2d");const imgData = ctx.createImageData(100, 100);for (let i = 0; i < imgData.data.length; i += 4) { imgData.data[i+0] = 255; imgData.data[i+1] = 0; imgData.data[i+2] = 0; imgData.data[i+3] = 255;}ctx.putImageData(imgData, 10, 10);document.getElementById("demo").innerHTML = "Width is: " + imgData.width;</script></body></html>