javascript - 从表中添加/删除行

Question

我有这个表，其中包含一些家属信息，每行都有一个添加和删除按钮，用于添加/删除其他家属。当我单击“添加”按钮时，一个新行会添加到表中，但是当我单击“删除”按钮时，它会首先删除标题行，然后在后续单击时删除相应的行。

这是我所拥有的:

Javascript代码

   function deleteRow(row){
      var d = row.parentNode.parentNode.rowIndex;
      document.getElementById('dsTable').deleteRow(d);
   }

HTML 代码

<table id = 'dsTable' >
      <tr>
         <td> Relationship Type </td>
         <td> Date of Birth </td>
         <td> Gender </td>
      </tr>
      <tr>
         <td> Spouse </td>
         <td> 1980-22-03 </td>
         <td> female </td>
         <td> <input type="button" id ="addDep" value="Add" onclick = "add()" </td>
         <td> <input type="button" id ="deleteDep" value="Delete" onclick = "deleteRow(this)"  </td>
      </tr>
       <tr>
         <td> Child </td>
         <td> 2008-23-06 </td>
         <td> female </td>
         <td> <input type="button" id ="addDep" value="Add" onclick = "add()"</td>
         <td>  <input type="button" id ="deleteDep" value="Delete" onclick = "deleteRow(this)" </td>
      </tr>
   </table>

Answer 1

经过一些修改的 JavaScript:

function deleteRow(btn) {
  var row = btn.parentNode.parentNode;
  row.parentNode.removeChild(row);
}

和 HTML 有一点区别:

<table id="dsTable">
  <tbody>
    <tr>
      <td>Relationship Type</td>
      <td>Date of Birth</td>
      <td>Gender</td>
    </tr>
    <tr>
      <td>Spouse</td>
      <td>1980-22-03</td>
      <td>female</td>
      <td><input type="button" value="Add" onclick="add()"/></td>
      <td><input type="button" value="Delete" onclick="deleteRow(this)"/></td>
    </tr>
    <tr>
      <td>Child</td>
      <td>2008-23-06</td>
      <td>female</td>
      <td><input type="button" value="Add" onclick="add()"/></td>
      <td><input type="button" value="Delete" onclick="deleteRow(this)"/></td>
    </tr>
  </tbody>
</table>​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​