The onpaste event occurs when you paste content in the element.
Example
You can try to run the following code to learn how to work with onpaste event in JavaScript.
<!DOCTYPE html>
<html>
<body>
<input type="text" onpaste="pasteFunction()" value="paste text here">
<script>
function pasteFunction() {
document.write("Text pasted successfully!");
}
</script>
</body>
</html>