HTML DOM Table deleteTFoot()用法及代码示例

表deleteTFoot()方法用于从表中删除<tfoot>元素及其内容。仅当<tfoot>元素已经存在时才可以使用它。

用法

tableObject.deleteTFoot()

以下示例程序旨在说明表deleteTFoot()方法：
示例1：删除<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>

输出：

在单击“Add Footer”按钮之前：

单击“Add Footer”按钮后：

单击“Delete Footer”按钮后：

支持的浏览器：

苹果Safari
IE浏览器
火狐浏览器
谷歌浏览器
Opera

相关用法

注：本文由纯净天空筛选整理自Shubrodeep Banerjee大神的英文原创作品 HTML | DOM Table deleteTFoot() Method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。