what does inline do in javascript code example

Example 1: 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 2: how to use inline javascript in html

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