Sean Kelly Wrote: > Andrei Alexandrescu Wrote: > > > On 12/14/10 9:25 AM, Sean Kelly wrote: > > > Adam Ruppe Wrote: > > >> > > >> Client side scripting sucks. It's garbage. Slow, incompatible, > > >> unreliable, and a > > >> piece of junk platform in general - it does very little that's > > >> interesting. That's > > >> not even getting into the language itself. > > > > > > It totally sucks, but it does scale better than executing everything > > > server-side. > > > > Surprisingly, it doesn't. Facebook is reducing its client-side > > Javascript to a minimum in favor of server-side code. Reason? Speed. You > > can't control user's OS, browser, and hardware platform, but you can > > control your own. > > I don't think speed and scalability are the same thing. Everything is far > faster server-side, but you pay for that in data center real estate. The > trick is finding the right balance.
Oh, I forgot to mention that latency is another issue. On a slow line, even instantaneous server-side computation can seem slow to the user. This is probably the largest issue in designing a performant web app these days. There are solutions (like edge caching) but they can tremendously complicate the app design.
