HTMLTableElement: insertRow() method
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.
The insertRow() method of the HTMLTableElement interface inserts a new row
(<tr>) in a given <table>, and returns a reference to
the new row.
If a table has multiple <tbody> elements, by default, the new row is
inserted into the last <tbody>.
To insert the row into a specific section, use HTMLTableSectionElement.insertRow()
Note:
insertRow() inserts the row directly into the
table. The row does not need to be appended separately as would be the case if
Document.createElement() had been used to create the new
<tr> element.
Syntax
insertRow()
insertRow(index)
HTMLTableElement is a reference to an HTML <table>
element.
Parameters
indexOptional-
The row index of the new row. If
indexis-1or equal to the number of rows, the row is appended as the last row. Ifindexis omitted it defaults to-1.
Return value
An HTMLTableRowElement that references the new
row.
Exceptions
IndexSizeErrorDOMException-
Thrown if
indexis greater than the number of rows.
Examples
This example uses insertRow(-1) to append a new row to a table.
We then use HTMLTableRowElement.insertCell() to insert a new cell in the
new row. (To be valid HTML, a <tr> must have at least one
<td> element.) Finally, we add some text to the cell using
Document.createTextNode() and Node.appendChild().
HTML
<table id="my-table">
<tr>
<td>Row 1</td>
</tr>
<tr>
<td>Row 2</td>
</tr>
<tr>
<td>Row 3</td>
</tr>
</table>
JavaScript
function addRow(tableID) {
// Get a reference to the table
let tableRef = document.getElementById(tableID);
// Insert a row at the end of the table
let newRow = tableRef.insertRow(-1);
// Insert a cell in the row at index 0
let newCell = newRow.insertCell(0);
// Append a text node to the cell
let newText = document.createTextNode("New bottom row");
newCell.appendChild(newText);
}
// Call addRow() with the table's ID
addRow("my-table");
Result
Specifications
| Specification |
|---|
| HTML # dom-table-insertrow-dev |
Browser compatibility
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