How to move from a domain to a category of another site?

Question

JavaScript

The bottom line is to transfer the service from the site.ru domain to the category of another site, i.e. the service will have a new address site2.ru/servis .
What is the best way to do this?
It is clear that you need to do a 301 redirect to a new domain. And when will the old domain lose its weight in the eyes of search engines? And will he lose?

Answer 1

consleLog() will fire twice on startup
. onResize() will fire each time the window is resized,
but consleLog() will not fire again.
You can rewrite onResize like this:

function onResize() {
    heightOfSubMnu = $('body').width();
    consleLog();
}

Answer 2

Moving depends on the number of pages if a small site is fast, but if there are good links to the old site, then you need to change them at the sources, or maintain the domain evening, thank God, domains are cheap these days