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<html><body><h1>HTML5 Canvas clip()</h1><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");// Create a triangle-shaped clipping regionctx.beginPath();ctx.moveTo(100,20);ctx.lineTo(180,100);ctx.lineTo(20,100);ctx.lineTo(100,20);ctx.clip();// Draw two rectanglesctx.fillStyle = "blue";ctx.fillRect(0, 0, 300, 150);ctx.fillStyle = "red";ctx.fillRect(0, 0, 90, 90);</script></body></html>