How to dynamically change a web page's title?

Question

I have a webpage that implements a set of tabs each showing different content. The tab clicks do not refresh the page but hide/unhide contents at the client side.

No

Answer 1

But in order to get the SEO befits

You need to do a page reload when the page changes so that the search engine's see the different titles etc.

So make sure the page reload works first then add document.title changes