Run Example

Edit This Code:

<!DOCTYPE html>
<html>
 <head>
  <script type="text/javascript">
   function jsexample() {
    alert("Hello this is js within head tag!")
   }
  </script>
 </head>

 <body>
  <h1>JavaScript within head tag </h1>
  <input type="button" onclick="jsexample()" value="Click Me!">
 </body> 
</html>

Result: