Greeting in JavaScript - html

examples/handlebars/pure_js_greeting.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
  <title>Hello World</title>
</head>
<body>

First name: <input id="first_name">
Last name: <input id="last_name">
<button id="say">Say hi!</button>

<hr>
<div id="result"></div>


<script src="pure_js_greeting.js"></script>
</body>
</html>