Why is the dom element available in a variable by id?

Question

JavaScript

If I have a block
<div id="name"></div>
I can refer to it like this

name
или
window.name

That is, the block with the "name" identifier will be available in the name variable, with the body identifier in the body variable, and so on. Any element can be accessed by its identifier through a variable with the name corresponding to the identifier.
And that's the case with any site.
Why?
For me, this is nonsense.

Answer 1

stackoverflow.com/questions/3434278/do-dom-tree-el...
not really. Let's say if you explicitly specify a property in window, then it will override this behavior.