JQuery Change

The change event occurs when the value of an element has been changed for the selected element.

In this method we enter some value in textbox and then show the message in alert box. 

<!DOCTYPE html>
<html>
    <head>
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"></script>
    <script>
    $(document).ready(function(){
        $("input").change(function(){
            alert("Text change sucessfull");
        });
    });
    </script>
    </head>
<h1>Enter the Some Text:-</h1><input type="text" style= "height:30px; width:600px; font-size: 30px">
</html>

Output