How to run a function after entire page is loaded in AEM

[#1]

I added a jquery plugin to Adobe Experience Manager Training

When I run the code on the console it works

but not when I add the same lines to the js file.

What would be the issue?

[#2 · Accepted solution]

Check for DOM load -

https://coderwall.com/p/_jothq/jquery-when-to-use-document-ready-and-when-window-load

Page: DOMContentLoaded, load, beforeunload, unload