DOM - 节点对象方法 - normalize
方法 normalize 添加所有文本节点，包括属性节点，该节点定义了一种标准形式，其中包含元素、注释、处理指令、CDATA 部分和实体引用的节点结构将文本节点分开，即既不是相邻的文本节点也不是空的文本节点。
语法
以下是使用 normalize 方法的语法。
nodeobject.normalize();
此方法没有参数，也没有返回值。
示例
node.xml 内容如下 −
<?xml version = "1.0"?>
<Company>
<Employee category = "Technical">
<FirstName>Tanmay</FirstName>
<LastName>Patil</LastName>
<ContactNo>1234567890</ContactNo>
<Email>tanmaypatil@xyz.com</Email>
</Employee>
<Employee category = "Non-Technical">
<FirstName>Taniya</FirstName>
<LastName>Mishra</LastName>
<ContactNo>1234667898</ContactNo>
<Email>taniyamishra@xyz.com</Email>
</Employee>
<Employee category = "Management">
<FirstName>Tanisha</FirstName>
<LastName>Sharma</LastName>
<ContactNo>1234562350</ContactNo>
<Email>tanishasharma@xyz.com</Email>
</Employee>
</Company>
以下示例演示了 normalize 方法的用法 −
<!DOCTYPE html>
<html>
<head>
<script>
function loadXMLDoc(filename) {
if (window.XMLHttpRequest) {
xhttp = new XMLHttpRequest();
} else // code for IE5 and IE6 {
xhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xhttp.open("GET",filename,false);
xhttp.send();
return xhttp.responseXML;
}
</script>
</head>
<body>
<script>
xmlDoc = loadXMLDoc("/dom/node.xml");
x = xmlDoc.createElement('Employee');
x.appendChild( document.createTextNode("EmployeeA ") );
x.appendChild( document.createTextNode("EmployeeB ") );
document.write("<b>Before normalize</b><br>");
document.write("<b>Child node length: </b>"+x.childNodes.length+"<br>");
document.write("<b>First child node: </b>"+x.childNodes[0].textContent+"<br>");
document.write("<b>Second child node: </b>"+x.childNodes[1].textContent+"<br>");
x.normalize();
document.write("<b>After normalize</b><br>");
document.write("<b>Child node length: </b>"+x.childNodes.length+"<br>");
document.write("<b>First child node: </b>"+x.childNodes[0].textContent+"<br>");
</script>
</body>
</html>
执行
将此文件另存为服务器路径上的nodemethod_normalise.html(此文件和node.xml应位于服务器中的同一路径)。我们将获得如下所示的输出 −
Before normalize Child node length: 2 First child node: EmployeeA Second child node: EmployeeB After normalize Child node length: 1 First child node: EmployeeA EmployeeB
dom_node_object.htm
