JavaScript - What's Unique About JavaScript?

The idea of Quick, as I understand it, is that you can have it all at once and have it load quickly. So the problem with this particular approach is that, well, you're sending a blank HTML page to the user. And so now you have to wait the whatever, however it takes to run the application until the application's up and running. That could be multiple seconds, like, again, 10, 15, 30 seconds if it's a slow connection kind of thing. The way SPAs take off is by showing them essentially the same page that the application eventually renders,. And then the application renders normally, like it always did. It just throws away the loading page and