javascript - 无法使用 javascript 检索表格上单元格的特定值

Question

我使用以下代码来检索表中特定单元格的值。:

function addCatAttr()
{
   var tbl = document.getElementById("tblAttributes1");
   if (tbl.rows.length > 1)
   {
       for ( var i = 1 ; i < tbl.rows.length ; i++ )
       {
           var r = tbl.rows[i];
           var catname1 =r.cells[0].document.getElementsByTagName("input").item(1).value;
           var lifecycycleattr1 = r.cells[0].document.getElementsByTagName("input").item(2).value;
           var stateattr1 = r.cells[0].document.getElementsByTagName("input").item(3).value;

        }
    }
}

我的 html 代码是:

<table id="tblAttributes1">
    <tr>
        <td>Category</td>
        <td>Life Cycle Attribute</td>
        <td>State Attribute</td>
    </tr>
    <tr>
        <td>cat1</td>
        <td>pf</td>
        <td>state</td>
    </tr>
</table>

I want to retrieve each value of a particular.

这只是一个例子。我有超过两行，我需要 for 循环来获取每个单元格的值。

Answer 1

看看这是否为您指明了正确的方向:

function addCatAttr()
{
   var tbl = document.getElementById("tblAttributes1");
   if (tbl.rows.length > 1)
   {
       for ( var i = 1 ; i < tbl.rows.length ; i++ )
       {
           var r = tbl.rows[i];
           var catname1 =r.cells[0].innerText;
           var lifecycycleattr1 = r.cells[1].innerText;
           var stateattr1 = r.cells[2].innerText;
           
           alert('catname1: ' + catname1 + '\r\n' +
                 'lifecycycleattr1: ' + lifecycycleattr1 + '\r\n' +
                 'stateattr1: ' + stateattr1 + '\r\n');
        }
    }
}

<table id="tblAttributes1">
    <tr>
        <td>Category</td>
        <td>Life Cycle Attribute</td>
        <td>State Attribute</td>
    </tr>
    <tr>
        <td>cat1</td>
        <td>pf</td>
        <td>state</td>
    </tr>
</table>

<input type="button" onclick="addCatAttr()" value="Click me" />