单击 HTML 表并获取行号（使用 Javascript，而不是 jQuery）
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Click on HTML table and get row number (with Javascript, not jQuery)
提问by scatterbrain29
I would like to know how to click on a button in an HTML table and get the row and column number returned to me: For example, with the following table:
我想知道如何单击 HTML 表格中的按钮并获取返回给我的行号和列号：例如，使用下表：
<table>
<tr>
<td><input type="button" value="button"></td>
<td><input type="button" value="button"></td>
<td><input type="button" value="button"></td>
</tr>
<tr>
<td><input type="button" value="button"></td>
<td><input type="button" value="button"></td>
<td><input type="button" value="button"></td>
</tr>
<tr>
<td><input type="button" value="button"></td>
<td><input type="button" value="button"></td>
<td><input type="button" value="button"></td>
</tr>
</table>
How would I use JavaScript to click on the first button in the second row and have it tell me that I clicked on the first cell in the second row? Does each button need to have a unique id, or not?
我将如何使用 JavaScript 单击第二行中的第一个按钮并让它告诉我我单击了第二行中的第一个单元格？每个按钮是否需要有唯一的 id？
回答by Gremash
Try this:
尝试这个：
function getId(element) {
alert("row" + element.parentNode.parentNode.rowIndex +
" - column" + element.parentNode.cellIndex);
}<table>
<tr>
<td><input type="button" value="button" onclick="getId(this)"></td>
<td><input type="button" value="button" onclick="getId(this)"></td>
<td><input type="button" value="button" onclick="getId(this)"></td>
</tr>
<tr>
<td><input type="button" value="button" onclick="getId(this)"></td>
<td><input type="button" value="button" onclick="getId(this)"></td>
<td><input type="button" value="button" onclick="getId(this)"></td>
</tr>
<tr>
<td><input type="button" value="button" onclick="getId(this)"></td>
<td><input type="button" value="button" onclick="getId(this)"></td>
<td><input type="button" value="button" onclick="getId(this)"></td>
</tr>
</table>回答by Tu4n3r
Most generic version of @Gremash js function
@Gremash js 函数的最通用版本
function getId(element) {
alert("row" + element.closest('tr').rowIndex +
" -column" + element.closest('td').cellIndex);
}
