The DOM Textarea cols Property is used to set or return the value of the cols attribute of a textarea field. The cols attribute how many average-width characters should fit on a single line.
Syntax:
- It is used to return the cols property.
textareaObject.cols
- It is used to Set the cols property:
textareaObject.cols = number
Property Values:
- number: It specifies the width of the textarea fields. It has a Default value i.e 20.
Return Value: It returns a numeric value that represents the width of a textarea in characters.
Example 1: HTML program to illustrate setting the DOM Textarea cols Property.
html
<!DOCTYPE html><html>
<head>
<title>DOM Textarea cols Property</title>
</head>
<body>
<h1 style="color: green;">
GeeksforGeeks
</h1>
<h2>
DOM Textarea cols Property
</h2>
<!-- Below textarea is assigned a cols value 25
That is, 25 characters will fit in a line -->
<textarea id="GFG" rows="4" cols="25">
A computer science portal for geeks.
</textarea>
<br>
<button type="button" onclick="myGeeks()">
Submit
</button>
<script>
function myGeeks() {
document.getElementById("GFG").cols = "50";
}
</script>
</body>
</html>
|
Output:
Example 2: HTML program to illustrate the return of the DOM Textarea cols Property.
html
<!DOCTYPE html><html>
<head>
<title>DOM Textarea cols Property</title>
</head>
<body>
<h1 style="color: green;">
GeeksforGeeks
</h1>
<h2>
DOM Textarea cols Property
</h2>
<!-- Below textarea is assigned a cols value 25
That is, 25 characters will fit in a line -->
<textarea id="GFG" rows="4" cols="25">
A computer science portal for geeks.
</textarea>
<br>
<button type="button" onclick="myGeeks()">
Submit
</button>
<p id="sudo"></p>
<script>
function myGeeks() {
let g = document.getElementById("GFG").cols;
document.getElementById(
"sudo").innerHTML =
"There are " + g +
" columns in a textarea width.";
}
</script>
</body>
</html>
|
Output:
Note: Both “textareaObject.cols” and “style.width” work as same.
Supported Browsers: The browser supported by Textarea cols Property are listed below:
- Google Chrome 1 and above
- Edge 12 and above
- Internet Explorer 6 and above
- Firefox 1 and above
- Opera 12.1 and above
- Safari 4 and above