DOM - 元素物件方法 - setAttributeNode



setAttributeNode 方法將新的屬性節點設定到現有元素。

語法

以下是 setAttributeNode 方法用法的語法。

elementObj.setAttributeNode(newAttr)

序號 引數及描述
1

newAttr

在屬性列表中新增一個新的屬性節點。

此方法新增一個新的屬性節點。

示例

node.xml 內容如下:

<?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 setAttributeNode 方法的用法:

<!DOCTYPE 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.createAttribute("City");
         x.nodeValue = "fourth";

         y = xmlDoc.getElementsByTagName("Email");
         y[0].setAttributeNode(x);

         document.write("City attribute is been set at the place: ");
         document.write(y[0].getAttribute("City"));
      </script>
   </body>
</html>

執行結果

將此檔案儲存為伺服器路徑上的 elementattribute_setAttributeNode.html(此檔案和 node.xml 應位於伺服器上的同一路徑)。我們將得到如下所示的輸出:

Display all the attribute nodes
category = technical
category = non-technical
category = Management
dom_element_object.htm
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