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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8" /> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0" /> | |
| <meta http-equiv="X-UA-Compatible" content="ie=edge" /> | |
| <title>Canvas State</title> | |
| </head> | |
| <body> | |
| <canvas id="canvas" width="300" height="300"></canvas> | |
| <!-- add js file in the end when the DOM is already loaded --> | |
| <script src="js/index.js"></script> | |
| </body> | |
| </html> |
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| const canvas = document.querySelector('#canvas'); | |
| const ctx = canvas.getContext('2d'); | |
| const cWidth = canvas.width; | |
| const cHeight = canvas.height; | |
| function drawCanvas(x, y, w, h, color) { | |
| ctx.fillStyle = color; | |
| ctx.fillRect(x, y, w, h); | |
| } | |
| drawCanvas(10, 20, 30, 30, 'turquoise'); | |
| ctx.save(); | |
| drawCanvas(50, 70, 30, 30, 'orangeRed'); | |
| ctx.save(); | |
| drawCanvas(120, 150, 30, 30, 'magenta'); | |
| ctx.restore(); | |
| drawCanvas(200, 70, 30, 30); | |
| // ctx.save(); // => this would give us back orangeRed | |
| ctx.restore(); | |
| drawCanvas(250, 20, 30, 30); |
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