`<canvas width="1024" height="768">` Does the browser, the web server or s-CodePudding

The following code consists of 2 parts: index.html and game.js.

var game = new Phaser.Game();

<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
  <meta charset="utf-8">
  <title></title>
  <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/phaser.js"></script>
</head>
<body>
  <script type="text/javascript" src="game.js"></script>
</body>
</html>

The code above doesn't specify the width and height for the canvas though, when I inspected the page I got, I saw an extra line of HTML

<canvas width="1024" height="768"></canvas>

Who does put it in there? Does the browser, the web server or something else automatically add the extra line of HTML?

CodePudding user response：

I would put my money on the script you're requesting in your header:

<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/phaser.js"></script>

That contains the code:

/*** 
@const {(number|string)} Phaser.Core.Config#width - The width of the underlying canvas, in pixels.
*/
        this.width = GetValue(config, 'width', 1024);

/*** 
@const {(number|string)} Phaser.Core.Config#height - The height of the underlying canvas, in pixels. 
*/
        this.height = GetValue(config, 'height', 768);

So, to answer your question, it is the browser.