How does the HTML know where to find the fuction?

Question

"Corresponding events can be added to HTML elements as attributes.
For example: <p onclick="someFunc()">some text</p>"

Answer 1

Javascript functions are called if they are in an external file, between <script> tags, or they are in inline Javascript in the HTML

Answer 2

In Javascript code added or linked in HTML Script tag/s.

Answer 3

Not HTML, the browser loads, parses and executes JS.