An opinionated take-away from JSConf 2017, Verona^edit

16 May 2017

4 mins

This is my opinionated take-away from JSConf 2017, Verona. Here bellow I’ll collect some of the most interesting slides, videos and tweets from JSDay. But at first please meet the awesome speakers

We want to thank all the #jsDay 2017 speakers! You are awesome!! pic.twitter.com/uEn4NAdOya
— JS Italian Conf (jsconfit) May 12, 2017

Uber with Dustin Whittle

Dustin Whittle had shown us the whole story behind the Uber platform

How #uber tech stack changed over the years! @jsconfit #jsday pic.twitter.com/H5byJGxMxh
— Luciano Mammino (loige) May 11, 2017

Lessons learned building at scale with JS at UberEng. “Enables you to move fast, but allows for sloppy code.”

Lessons learned building at scale with JS at UberEng.
"Enables you to move fast, but allows for sloppy code." #jsday pic.twitter.com/OiqkGbJxpE
— Phil @ Codemotion (@philnash) May 11, 2017

Latency is too high for ulta performant backed systems (99th percentile for max latency)
Early on it made it quick to iterate, but as the size of the team scaled the developer velocity started to slow down
- Microservices enforce a tight interface so having static typing enables large teams to catches issues earlier. It really has an impact with 100+ devs.
Quick to learn, but easy to write poor quality code
- Enables you to move fast, but allows for sloopy code

Uber uses universal javascript with React and Express.