Comments (2)
oliver1204
commented on June 14, 2024
7、向 script 标记添加异步关键字可以指示浏览器在等待脚本可用期间不阻止 DOM 构建，这样可以显著提升性能。
<html>
<head>
<meta name="viewport" content="width=device-width,initial-scale=1">
<link href="style.css" rel="stylesheet">
<title>Critical Path: Script Async</title>
</head>
<body>
<p>Hello <span>web performance</span> students!</p>
<div><img src="awesome-photo.jpg"></div>
<script src="app.js" async></script>
</body>
</html>
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oliver1204
commented on June 14, 2024
8、性能渲染
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