tr cells Collection

tr 对象参考手册tr Object

Examples

Display the number of cells in the first row:

var x = document.getElementById("myTable").rows[0].cells.length;

xThe output is:

2
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Definition and Usage

The cells collection returns the number of all <td> or <th> elements in a table row.

Note:The elements in the collection are in the same order as in the source code.


Browser Support

Collection
cells Yes Yes Yes Yes Yes

Syntax

tableObject.cells

Properties

Property Description
length Returns the number of <td> or <th> elements in the collection.

Note:This property is read-only.

Methods

Method Description
[name_or_index] An integer that specifies the position of the element to retrieve (starting from 0).
item(name_or_index) Returns the element at the specified index in the collection.
namedItem(name) Returns the element with the specified name or index in the collection.

Technical Details

DOM Version: Core Level 2 Document Object
Return Value: HTMLCollection object, representing all <td> or <th> elements in <tr>. The elements in the collection are in the same order as in the source code.

More Examples

Example

[index]

Alert the content of the first cell in the first row:

alert(document.getElementById("myTable").rows[0].cells[0].innerHTML);

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Example

item(index)

Alert the content of the first cell in the first row:

alert(document.getElementById("myTable").rows[0].cells.item(0).innerHTML);

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Example

namedItem(id)

Alert the content of the cell with id="myTd" in the first row:

alert(document.getElementById("myTable").rows[0].cells.namedItem("myTd").innerHTML);

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Example

Modify the content of the first cell:

var x = document.getElementById("myTable").rows[0].cells;
x[0].innerHTML = "NEW CONTENT";

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tr 对象参考手册tr Object

Other Extensions