Scaling a Real-World Node.js and CouchDB App

twilio.com

22 pointscrabasa3 comments

It would be nice to test the "HN effect" on this app. Vote for the best startup city here:

I voted, and you can probably guess my answer. Do you update the visualization before checking if the vote is a duplicate?

Yes. I felt that was a performance trade-off that I was willing to make because I valued the immediacy of the update to the web page.