How to output JavaScript into a Textbox?

Javascript Web Development Object Oriented Programming

You can use the concept of value(). Following is the JavaScript code −

Example

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
</head>
<body>
<label for="">FirstNumber </label><input type="textbox" name="input1"><br>
<label for="">SecondNumber: </label><input type="textbox" name="input2"><br>
<button onClick="add()">Add Two Nnumbers</button><br>
<label for="displayValue">The addition is: </label><input type="textbox" name="display">
<script>
   function add() {
      var f = parseInt(document.getElementsByName('input1')[0].value);`
      var s =parseInt(document.getElementsByName('input2')[0].value);
      var result = f+s;
      document.getElementsByName('display')[0].value= result;
   }
</script>
</body>
</html>

To run the above program, save the file name anyName.html(index.html) and right click on the file and select the option open with live server in VS code editor.