how to add javascript code in html code example

Example 1: import js in html

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

Example 2: how to use javascript in html

<!-- include an external javascript document -->
<script src="myJavaScript.js" charset="utf-8"></script>

<!-- JavaScript inside html element -->
<script>
  console.log("This is JavaScript");
</script>

Example 3: include javascript in html

<script>
	// JS Here  
</script>