本代码来自Coursera的Angular课程,欢迎大家去参加课程.我节选出精华的片段,写到自己博客上.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>HTML5 Custom Attributes</title>
</head>
<body>
<h1>HTML5 Custom Attributes</h1>
<div id="target" ng-app="myTestApp">
<section>Section 1
<article>Article 1</article>
</section>
</div>
<script>
// var elem = document.getElementById(‘target‘);
// console.log(elem);
//
// console.log(elem.getAttribute(‘ng-app‘));
var elem2 = document.querySelector("[ng-app]");
console.log(elem2);
console.log(elem2.getAttribute(‘ng-app‘));
</script>
</body>
</html>
自定义的attribute,html解释器在解释时会自动忽略,因此不会破坏html的运行.
Javascript自带了访问自定义attribute的函数,document.getAttribute(),这可以得到该attribute的值.
此外,还可以通过document.querySelector("[name]")获得有该attribute的dom树的分支.
时间： 2024-08-02 13:40:58