HTMLTableCellElement: cellIndex property

The cellIndex read-only property of the HTMLTableCellElement interface represents the position of a cell within its row (<tr>). The first cell has an index of 0.

Value

Returns the index of the cell, or -1 if the cell is not part of any row.

Examples

This example adds a label to all the cell numbers of the first row of the tbody.

HTML

<table>
  <thead>
    <tr>
      <th>Item</th>
      <th>Price</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Bananas</td>
      <td>$2</td>
    </tr>
    <tr>
      <td>Rice</td>
      <td>$2.5</td>
    </tr>
  </tbody>
</table>

table {
  border-collapse: collapse;
}

th,
td,
table {
  border: 1px solid black;
}

button {
  margin: 1em 1em 1em 0;
}

JavaScript

const rows = document.querySelectorAll("tbody tr");
const cells = rows[0].cells;

for (const cell of cells) {
  cell.textContent = `${cell.textContent} (cell #${cell.cellIndex})`;
}

Result

Specifications

Browser compatibility