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<html><body><h1>globalCompositeOperation = "source-out"</h1><p>The "source-out" value will draw new shapes only where it does not overlap the existing content.</p><canvas id="myCanvas" width="300" height="150" style="border:1px solid grey">Sorry, your browser does not support canvas.</canvas><script>const canvas = document.getElementById("myCanvas");const ctx = canvas.getContext("2d");// Set type of compositingctx.globalCompositeOperation = "source-out";// Draw two overlapping rectangles ctx.fillStyle = "blue";ctx.fillRect(10, 10, 100, 100);ctx.fillStyle = "red";ctx.fillRect(40, 40, 100, 100);</script></body></html>