how to put javascript file in html code example

Example 1: import js in html

<script type="text/javascript" src="yourfile.js"></script>

Example 2: include script in html

<script type="text/javascript" src="/path/to/script.js"></script>

Example 3: script src tag in html

<script type="text/javascript" 
         src="file.js">  
</script>

Example 4: how to link javascript to html

<script src = "index.js"></script>

Example 5: how to write code in external javascript file

function myFunction() {

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

}