HTMLTableCellElement: headers property

<table>
 <thead>
 <tr>
 <th rowspan="2" id="h">Homework (ID = h)</th>
 <th colspan="3" id="e">Exams (ID = e)</th>
 <th colspan="3" id="p">Projects (ID = p)</th>
 </tr>
 </thead>
 <tbody>
 <tr>
 <th id="e1" headers="e">1 (ID = e1)</th>
 <th id="e2" headers="e">2 (ID = e2)</th>
 <th id="ef" headers="e">Final (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">Final (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>
 </tbody>
</table>
IDs of headers of the last clicked cell: <output>none</output>.

table {
 border-collapse: collapse;
}
th,
td,
table {
 border: 1px solid black;
}
button {
 margin: 1em 1em 1em 0;
}

const table = document.querySelector("table");
const output = document.querySelector("output");
table.addEventListener("click", (ev) => {
 output.textContent = ev.target.headers ? ev.target.headers : "none";
});

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This page was last modified on Nov 3, 2025 by MDN contributors.