In Node.Js Express, does "res.render" end the http request?

Question

So, only do "res.render" when you are sure that everything has finished, right? Because it ends the request and shoots out a webpage.

Answer 1

If you don't provide a callback to res.render(view[, options[, fn]]) it will automatically give a response with 200 HTTP Status and Content-Type: text/html

res.render('view', {}, function() {
    while (true); // should block 
});

res.render(view[, options[, fn]])

Render view with the given options and optional callback fn. When a callback function is given a response will not be made automatically, however otherwise a response of 200 and text/html is given.

express.js guide