inline js in html code example

Example 1: script tag in html

<script>
  // Write JS here
</script>

<script src="link/to/js/file.js"></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
*/

Example 3: how to use script tag

<script>
 document.getElementById("id").innerText = ("");
</script>

Example 4: how to use inline javascript in html

<input type="text" id="fname" 
onkeyup="javascript:{console.log(window.event.key); alert('hello');}"
>