Run ❯
Get your
own
website
×
Change Orientation
Save Code
Change Theme, Dark/Light
Go to Spaces
<!DOCTYPE html> <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 compositing ctx.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>
