What is an easy way to calculate after how many seconds the dom will load?

Question

JavaScript

Hello!
I want to write a preloader bike. But not just a stub that hides after document ready, but a dynamic one.
The problem is that I have no idea how to find out after how many seconds the page will load so that there is dynamics
upd: How is it done on this page? twohustlers.com

Answer 1

In theory, at the very top of the page, you can put a timeStamp. and the second on the document.ready event. But I have a feeling that in practice it will turn out to be crap.