The HTML DOM Textarea cols return and modify the value of cols attribute of a text area element in an HTML document.
Syntax
Following is the syntax −
1. Returning cols
object.cols
2. Adding cols
object.cols = “number”
Let us see an example of HTML DOM Textarea cols Property:
Example
<!DOCTYPE html>
<html>
<style>
body {
color: #000;
background: lightseagreen;
height: 100vh;
}
.btn {
background: #db133a;
border: none;
height: 2rem;
border-radius: 2px;
width: 40%;
display: block;
color: #fff;
outline: none;
cursor: pointer;
}
</style>
<body>
<h1>DOM Textarea cols Property Demo</h1>
<textarea>Hi! I'm a textarea element in an HTML document with some dummy text.</textarea>
<button onclick="set()" class="btn">Set Cols = 50</button>
<script>
function set() {
document.querySelector("textarea").cols = '50';
}
</script>
</body>
</html>Output
Click on “Set Cols = 50” button to set the value of cols attribute to 50.
