Google's search definitely renders JS. The question is how much does it impact your page's rank to have it download and execute that JS?

I'm not sure, so I'd rather not think about it and just render my JS server side. React does with minimal effort https://facebook.github.io/react/docs/top-level-api.html#rea.... This also has the added benefit of making you think what the UX is like for people browsing without JS enabled.