adding javascript in html code example

Example 1: import js in html

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

Example 2: how to put javascript in HTML

<script>
  //put your java script here
  </script>

Example 3: how to add javascript in html

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

Example 4: how to add script in html head

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

<!--just add defer attribute so script will execute at last-->