How to use external JavaScript file? code example

Example 1: include js in html

<html>
    <head>        
    </head>
    <body>
    
        <script type="text/javascript" src=es4.js></script>
           
    </body>
        
</html>

Example 2: how to include external javascript in html

<script src="script.js">

Example 3: how to write code in external javascript file

function myFunction() {

  document.getElementById("demo").innerHTML = "Paragraph changed.";

}

Tags:

Javascript Example

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