菜鸟教程在线编辑器

AI 编程工具

 
                <!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>

<script>
let site = ['runoob', 'google', 'taobao'];

document.write(site.includes('runoob')); 
// true 

document.write("<br>"); 
	
document.write(site.includes('baidu')); 
// false
</script>

</body>
</html>
              