external js file in html example

Example 1: include script in html

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

Example 2: how to add script in html head

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

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

Example 3: include script in html

<script>
console.log('u are poo')  
</script>