HTML DOM Table deleteTFoot()用法及代碼示例

表deleteTFoot()方法用於從表中刪除<tfoot>元素及其內容。僅當<tfoot>元素已經存在時才可以使用它。

用法

tableObject.deleteTFoot()

以下示例程序旨在說明表deleteTFoot()方法：
示例1：刪除<tfoot>元素。

<!DOCTYPE html> 
<html> 
  
<head> 
    <title> 
      Table deleteTFoot() Method in HTML 
  </title> 
    <style> 
        table, 
        td { 
            border:1px solid green; 
        } 
          
        h1 { 
            color:green; 
        } 
          
        h2 { 
            font-family:Impact; 
        } 
          
        body { 
            text-align:center; 
        } 
    </style> 
</head> 
  
<body> 
  
    <h1>GeeksforGeeks</h1> 
    <h2>Table deleteTFoot() Method</h2> 
  
    <p>To create a footer for the table,  
      double-click the "Add Footer" button.</p> 
  
    <p>To delete the footer from the table,  
      double-click the "Delete Footer" button.</p> 
  
    <table id="Courses" 
           align="center"> 
        <tr> 
            <td>Java</td> 
            <td>Fork Java</td> 
        </tr> 
        <tr> 
            <td>Python</td> 
            <td>Fork Python</td> 
        </tr> 
        <tr> 
            <td>Placements</td> 
            <td>Sudo Placement</td> 
        </tr> 
  
    </table> 
    <br> 
  
    <button ondblclick="Add_foot()"> 
      Add Footer 
  </button> 
  
    <button ondblclick="Delete_foot()"> 
      Delete Footer 
  </button> 
  
    <script> 
        function Add_foot() { 
            
            var MyTable =  
                document.getElementById("Courses"); 
            
            var MyFooter = MyTable.createTFoot(); 
            var MyRow = MyFooter.insertRow(0); 
            var MyCell = MyRow.insertCell(0); 
            
            MyCell.innerHTML = 
              "<b>Available On GeeksforGeeks.</b>"; 
        } 
  
        
        function Delete_foot() { 
            
            // Delete footer. 
            document.getElementById( 
              "Courses").deleteTFoot(); 
        } 
    </script> 
  
</body> 
  
</html>

輸出：

在單擊“Add Footer”按鈕之前：

單擊“Add Footer”按鈕後：

單擊“Delete Footer”按鈕後：

支持的瀏覽器：

蘋果Safari
IE瀏覽器
火狐瀏覽器
穀歌瀏覽器
Opera

相關用法

注：本文由純淨天空篩選整理自Shubrodeep Banerjee大神的英文原創作品 HTML | DOM Table deleteTFoot() Method。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。