HTML Scripting Tags

It is used to add javascript codes to the html pages to perform some functionality inside your web page

Tags are: <script>, <noscript>
Below are the basic examples of JavaScript using Scripting Tag

Tag:

<script> Tag

This is also called "Internal JavaScript"

<!DOCTYPE html>
<html>
<head><title>Script Tag Example</title>
 <script type="text/javascript">
  function myFun() {
   alert('This is a alert message');
  }
 </script>
</head>
<body>
 <button onclick="myFun();">click on me</button>    
</body>
</html>

Output:

Another Way to use <script> Tag

This is also called "External JavaScript"

<!DOCTYPE html>
<html>
<head><title>Script Tag Example</title>
  <script src="myjavaFile.js"></script>
</head>
<body>
 <button onclick="alertFun();">Click On Me</button>    
</body>
</html>

"myjavaFile.js" file contains

function alertFun() {
  alert('This is a External function alert message');
}

Output:

you can create your java file externally and call it on your web page

<noscript> Tag

<!DOCTYPE html>
<html>
<head><title>NoScript Tag Example</title>
 <script type="text/javascript">
  function myFun() {
   alert('This is a alert message');
  }
 </script>
<noscript>Your browser does not support JavaScript! </noscript>
</head>
<body>
 <button onclick="myFun();">click</button>    
</body>
</html>

Output:

Above, we are using Developer tools to show you how this tag actually works
When JavaScript disabled on your browser then <noscript> codes executes on your page
well, you will learn JavaScript in new separate tutorial