DOM Attribute物件ownerElement屬性

2019-10-16 23:18:54

DOM Attribute物件ownerElement屬性為屬性關聯的提供節點,如果未使用屬性,則為null

語法

以下是ownerElement屬性的使用語法。

attrObject.ownerElement

範例

檔案:node.xml 的內容如下 -

<?xml version = "1.0"?>
<Company>
   <Employee category = "Technical">
      <FirstName>Tianya</FirstName>
      <LastName>Su</LastName>
      <ContactNo>0898-12345678</ContactNo>
      <Email>[email protected]</Email>
   </Employee>

   <Employee category = "Non-Technical">
      <FirstName>Max</FirstName>
      <LastName>Lee</LastName>
      <ContactNo>089833990088</ContactNo>
      <Email>[email protected]</Email>
   </Employee>

   <Employee category = "Management">
      <FirstName>Susen</FirstName>
      <LastName>Wong</LastName>
      <ContactNo>1010-234562350</ContactNo>
      <Email>[email protected]</Email>
   </Employee>
</Company>

以下範例演示了ownerElement屬性的用法 -

<!DOCTYPE html>
<html>
    <meta charset="utf-8"/>
   <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("/node.xml");

         x = xmlDoc.getElementsByTagName('Employee');

         document.write("Owner is : ");
         document.write(x.item(0).attributes[0].ownerElement);
         document.write("<br>");

         document.write("Owner Name of attribute node is : ");
         document.write(x.item(0).attributes[0].ownerElement.nodeName);

      </script>
   </body>
</html>

執行上面範例程式碼,得到以下結果 -