JS & DOM Reference
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DOM Textarea
Textarea cols Property
Textarea Object
Definition and Usage
The cols property sets or returns the width of a text area, in characters.
Syntax
Set the cols property:
textareaObject.cols="number"
Return the cols property:
textareaObject.cols
| Value | Description |
|---|---|
| number | Specifies the width of the textarea, in characters. Default is 20 |
Browser Support
The cols property is supported in all major browsers.
Example
Example
Change the width of a textarea:
<html>
<head>
<script type="text/javascript">
function displayResult()
{
var textarea=document.getElementById("myTextarea");
textarea.cols=document.getElementById("myInput").value;
}
</script>
</head>
<body>
<textarea id="myTextarea" cols="20">
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</textarea>
<br />
<p>Set cols attribute value: <input type="text" id="myInput" value="60" />
<button type="button" onclick="displayResult()">Change cols attribute</button></p>
</body>
</html>
<head>
<script type="text/javascript">
function displayResult()
{
var textarea=document.getElementById("myTextarea");
textarea.cols=document.getElementById("myInput").value;
}
</script>
</head>
<body>
<textarea id="myTextarea" cols="20">
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</textarea>
<br />
<p>Set cols attribute value: <input type="text" id="myInput" value="60" />
<button type="button" onclick="displayResult()">Change cols attribute</button></p>
</body>
</html>
Textarea Object
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Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content.
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Copyright 1999-2012 by Refsnes Data. All Rights Reserved.
Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content.
While using this site, you agree to have read and accepted our terms of use and privacy policy.
Copyright 1999-2012 by Refsnes Data. All Rights Reserved.