The HTML onpaste attribute is triggered when user paste some content in an HTML element in an HTML document.
Syntax
Following is the syntax −
<tagname onpast=”script”></tagname>
Let us see an example of HTML onpaste event Attribute −
Example
<!DOCTYPE html>
<html>
<head>
<style>
body {
color: #000;
height: 100vh;
background: linear-gradient(62deg, #FBAB7E 0%, #F7CE68 100%) no-repeat;
text-align: center;
padding: 20px;
}
p {
border: 2px solid #fff;
padding: 8px;
text-align: justify;
}
textarea {
border: 2px solid #fff;
background: transparent;
font-size: 1rem;
}
::placeholder {
color: #000;
font-size: 1rem;
}
</style>
</head>
<body>
<h1>HTML onpaste Event Attribute Demo</h1>
<p>
I'm a paragraph element with some dummy text.
I'm a paragraph element with some dummy text.
I'm a paragraph element with some dummy text.
I'm a paragraph element with some dummy text.
I'm a paragraph element with some dummy text.
</p>
<textarea placeholder="Paste above text here" onpaste="pasteFn()" rows='8' cols="50" required></textarea>
<script>
function pasteFn() {
document.querySelector('textarea').style.background = '#fff';
}
</script>
</body>
</html>Output

Now try to copy & paste paragraph text in the text area and observe how onpaste event attribute works −
