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tr cells Collection
tr Object
Definition and Usage
The cells collection returns a collection of all <td> or <th> elements in a table row.
Note: The elements in the collection are sorted as they appear in the source code.
Syntax
trObject.cells
Properties
| Property | Description |
|---|---|
| length | Returns the number of <td> or <th> elements in the collection |
Methods
| Method | Description |
|---|---|
| [name_or_index] | An integer that specifies the element to retrieve (starts at 0) |
| item(name_or_index) | Returns the element from the collection with the specified index/name/id |
| namedItem(name) | Returns the element from the collection with the specified name (name or id attribute) |
Browser Support
The cells collection is supported in all major browsers.
Example
Example
Show the number of cells in the first row:
<html>
<head>
<script>
function displayResult()
{
alert(document.getElementById("myTable").rows[0].cells.length);
}
</script>
</head>
<body>
<table id="myTable" border="1">
<tr>
<td>cell 1</td>
<td>cell 2</td>
</tr>
<tr>
<td>cell 3</td>
<td>cell 4</td>
</tr>
</table>
<br>
<button type="button" onclick="displayResult()">Show number of cells</button>
</body>
</html>
<head>
<script>
function displayResult()
{
alert(document.getElementById("myTable").rows[0].cells.length);
}
</script>
</head>
<body>
<table id="myTable" border="1">
<tr>
<td>cell 1</td>
<td>cell 2</td>
</tr>
<tr>
<td>cell 3</td>
<td>cell 4</td>
</tr>
</table>
<br>
<button type="button" onclick="displayResult()">Show number of cells</button>
</body>
</html>
Try it yourself »
More Table Examples
Alert the content of the first row
Add a cell to a table row through the rows collection
Vertical align the cell content in a table row
Vertical align the cell content in a single cell
Change the content of a table cell
Change the colspan of a table row
tr Object
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