Understanding innerHTML

<br />Related articles: innerHTML
HTML DOM insertRow() Method
Definition and Usage
Definition and Usage
The insertRow() method is used to insert a new row at a specified position in a table.
The insertRow() method can be used to insert a new row at a specified position in the table.
Syntax
tableObject.insertRow(index) //Index, add a new row
--------------------------------------------------------------------------------
Example
<html>
<head>
<script type="text/javascript">
function insRow()
{
document.getElementById('myTable').insertRow(0) //Find the control in the document
}
</script>
</head>
<body>
<table id="myTable" border="1">
<tr>
<td>Row1 cell1</td>
<td>Row1 cell2</td>
</tr>
<tr>
<td>Row2 cell1</td>
<td>Row2 cell2</td>
</tr>
</table>
<form>//Place controls in the form
<input type="button" onclick="insRow()"
value="Insert new row before the first row">//value is the content to be displayed on the control
</form>
</body>
</html>
In the js method, you can directly use the id.innerHtml of the paired tags to assign the tag content without declaring variables in the js method.
innerHTML is an attribute of the html tag. Most of the tags that appear in pairs have this attribute. //The tag attribute is the characters between the start tag and the end tag, not including the tag itself. For example
<p id="pp">aaaaaaaaaaa<span id="ss">bbbbbbbb</span> </p>
Here the p tag and span tag are nested together, so the content of pp.innerHTML is
aaaaaaaaaaa<span id="ss">bbbbbbbb</span>
The content of ss.innerHTML is
bbbbbbbb
=========================
A similar property is outerHTML
Then the content of pp.outerHTML is
<p id="pp">aaaaaaaaaaa<span id="ss">bbbbbbbb</span> </p>
The content of ss.outerHTML is
<span id="ss">bbbbbbbb</span>

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