html how to set script code example

Example 1: 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 2: html inline javascript

/*
There is no actual way to put javascript inside an HTML attribute
But there are some event attribute that can trigger JavaScript 
functions.
Otherwise you have to use <script> tag or external JavaScript
*/