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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Draw Rectangle on Canvas Using rect</title> </head> <body> <canvas id="demoCanvas" width="300" height="200" style="border: 2px solid #000">Sorry, Your browser doesn't support Canvas tag!</canvas> <script> window.onload = function() { var cnvs = document.getElementById("demoCanvas"); var ctx = cnvs.getContext("2d"); /* Syntax: context.rect(x, y, width, height); */ ctx.rect(50, 50, 200, 100); ctx.stroke(); }; </script> </body> </html>