tryjsref_node_issupported 在线代码实例

实例代码( Tip: 登录后体验更佳 )
运行代码

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>W3Cschool教程(w3cschool.cn)</title>
</head>
<body>
<button onclick="myFunction()">点我</button>
<p id="demo">单击按钮检查功能核心XML DOM 2对按钮元素是否支持。</p>
<script>
function myFunction(){
    var item=document.getElementsByTagName("BUTTON")[0];
    var x=document.getElementById("demo");
    x.innerHTML=item.isSupported("Core","2.0");
}
</script>
<p><strong>注意:</strong> Internet Explorer 8 及之前版本不支持isSupported 方法。</p>
</body>
</html>
 
 
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运行结果
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