The HTML | DOM TableData headers Property is used to set or return the value of a headers attribute. The headers attribute is used to specify the a table cell containing Header information for the current data cell.
Syntax:
- It returns the headers property.
tabledataObject.headers
- It is used to set the headers property.
tabledataObject.headers = header_ids
Property Values: It contains the value i.e header_ids which specify the separated list of id’s to one or more header cell .
Return Value: It returns a string value which represents the separated list of header-list Id’s.
Example-1: This Example returns a headers Property.
HTML
<!DOCTYPE html>
<html>
<head>
<style>
table,
th,
td {
border: 1px solid green;
}
</style>
</head>
<body>
<h1 style="color:green;">
GeeksForGeeks
</h1>
<h2>
DOM TableData Headers Property
</h2>
<table>
<tr>
<td id="myTd" headers="Geeks" colspan="3">
Geeks
</td>
<td>For</td>
<td>Geeks</td>
</tr>
</table>
<br>
<button onclick="myFunction()">
Click Here!
</button>
<p id="demo" style="font-size:24px;
colorgreen;">
</p>
<script>
function myFunction() {
// return TableData Headers Property
var x =
document.getElementById(
"myTd").headers;
document.getElementById("demo").innerHTML =
x;
}
</script>
</body>
</html>
|
Output:
Before Clicking On Button:
After Clicking On Button:
Example-2: This Example sets a header’s Property.
HTML
<!DOCTYPE html>
<html>
<head>
<style>
table,
th,
td {
border: 1px solid green;
}
</style>
</head>
<body>
<h1 style="color:green;">
GeeksForGeeks
</h1>
<h2>
DOM TableData Headers Property
</h2>
<table>
<tr>
<td id="myTd" headers="Geeks" colspan="3">
Geeks
</td>
<td>For</td>
<td>Geeks</td>
</tr>
</table>
<br>
<button onclick="myFunction()">
Click Here!
</button>
<p id="demo" style="font-size:24px;
colorgreen;">
</p>
<script>
function myFunction() {
// set TableData Headers Property
var x =
document.getElementById(
"myTd").headers = "GFG";
document.getElementById("demo").innerHTML =
"The value od the headers attribute was changed to "
+ x;
}
</script>
</body>
</html>
|
Output:
Before Clicking On Button:
After Clicking On Button:
Supported Browsers:
- Google Chrome
- Mozilla Firefox
- Edge
- Safari
- Opera
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