HTMLTableCellElement:headers 属性

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

HTMLTableCellElement 接口的 headers 属性包含一组为此特定单元格充当表头<th> 元素的 ID 列表。

一个包含由空格分割的 ID 的字符串。

示例

此示例列出表格中最后一次被点击的单元格的 ID:

HTML

html
<table>
  <tr>
    <th rowspan="2" id="h">家庭作业(ID = h)</th>
    <th colspan="3" id="e">考试(ID = e)</th>
    <th colspan="3" id="p">项目(ID = p)</th>
  </tr>
  <tr>
    <th id="e1" headers="e">1(ID = e1)</th>
    <th id="e2" headers="e">2(ID = e2)</th>
    <th id="ef" headers="e">期末(ID = ef)</th>
    <th id="p1" headers="p">1(ID = p1)</th>
    <th id="p2" headers="p">2(ID = p2)</th>
    <th id="pf" headers="p">期末(ID = pf)</th>
  </tr>
  <tr>
    <td headers="h">15%</td>
    <td headers="e e1">15%</td>
    <td headers="e e2">15%</td>
    <td headers="e ef">20%</td>
    <td headers="p p1">10%</td>
    <td headers="p p2">10%</td>
    <td headers="p pf">15%</td>
  </tr>
</table>
最后一次点击的单元格的表头 ID:<output></output>

JavaScript

js
const table = document.querySelector("table");
const output = document.querySelector("output");

table.addEventListener("click", (ev) => {
  output.textContent = ev.target.headers ? ev.target.headers : "无";
});

结果

规范

Specification
HTML
# dom-tdth-headers

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
headers

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support