HTML DOM Table cells collection
Table Object Definition and Usage
Returns a collection of all table cells <td> or <th> element.
grammar
tableObject.cells
Attributes
| 属性 | 描述 |
|---|---|
| length | 返回集合中 <td> 或 <th> 元素的数目。 |
method
| 方法 | 描述 |
|---|---|
| [name_or_index] | 一个整数，指定元素检索位置（从0开始） |
| item(name_or_index) | 返回集合中的指定索引的元素 |
| namedItem(name) | 返回集合中指定名称索引的元素索引 |
Browser Support
All major browsers support a collection of cells
Examples
Examples
The following example shows the use of cells to the first cell's contents:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>本教程(w3big.com)</title>
<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()">显示第一行单元格的数量</button>
</body>
</html>
<html>
<head>
<meta charset="utf-8">
<title>本教程(w3big.com)</title>
<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()">显示第一行单元格的数量</button>
</body>
</html>
try it"
More examples
Align the table row cell contents
Vertical cell content is aligned rows in the table
Align the contents of a single cell
Vertical alignment of cell contents
Table Object