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JavaScript - draw rectangle on canvas element
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In this article, we would like to show you how to draw a rectangle on an HTML canvas element using JavaScript.
Quick solution:
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var canvas = document.querySelector('#my-canvas');2
var context = canvas.getContext('2d');3
context.beginPath();4
context.rect(10, 10, 150, 100); // rect(x, y, width, height)5
context.stroke();
In this section, we present a practical example of how to use rect() method to draw a rectangle on the canvas.
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<html>3
<head>4
<style>5
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#my-canvas { border: 1px solid gray; }7
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</style>9
</head>10
<body>11
<canvas id="my-canvas" width="200" height="200"></canvas>12
<script>13
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var canvas = document.querySelector('#my-canvas');15
var context = canvas.getContext('2d');16
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function drawRectangle(x, y, width, height) {18
context.beginPath();19
context.rect(x, y, width, height);20
context.stroke();21
}22
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drawRectangle(10, 10, 150, 100);24
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</script>26
</body>27
</html>