DOM ProcessingInstruction对象data属性是描述应用程序在紧接在?>之前处理的信息的字符。
语法
以下是data属性的使用语法。
ProcessingInstruction.data
示例
以下示例演示了data属性的用法 -
<!DOCTYPE html>
<html>
<meta charset="utf-8"/>
<head>
<script>
// loads the xml string in a dom object
function loadXMLString(t) {
// for non IE browsers
if (window.DOMParser) {
// create an instance for xml dom object
parser = new DOMParser();
xmlDoc = parser.parseFromString(t,"text/xml");
} else // code for IE
{
// create an instance for xml dom object
xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.async = false;
xmlDoc.loadXML(t);
}
return xmlDoc;
}
function get_firstChild(p) {
a = p.firstChild;
return a;
}
</script>
</head>
<body>
<script>
var xml = "<Employee>";
xml = xml+"<FirstName>";
xml = xml+"<?piTarget piData more piData?>";
xml = xml+"</FirstName>";
xml = xml+"</Employee>";
// calls the loadXMLString() with "text" function and store the xml dom in a variable
var xmlDoc = loadXMLString(xml);
var x = get_firstChild(xmlDoc.getElementsByTagName("FirstName")[0]);
document.write("第一个子节点是 : ");
document.write(x.nodeName);
//the following should be "piData more piData"
alert(x.data);
//the following should be "piTarget"
alert(x.target);
</script>
</body>
</html>
执行上面示例代码，得到以下结果 -
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ProcessingInstruction对象
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DOM Entity对象