What are the limitations for a javascript object?

Question

JavaScript

What if we make an object on the node that stores the entire structure of the site or page (analogous to DOM)?
When a visitor enters the server, this object is sorted through for in, while the conditions are checked, as a result, a ready-made page is formed and transmitted.
What is the meaning:
- This object is formed by a template engine, the functions of which are also included in the object.
- Access to all elements of the page and the ability, if necessary, to supplement some elements of the page (for example, add a script that is necessary for debugging on the client side)
- and much more.

Answer 1

It?