[alunchbox]

It doesn't work well, not for everyone on the team at least. Static typing helps alleviate a lot of the bugs you'd normally get with a dynamic language. As of my opinion now after working on a medium/large size dynamic js project. It bit us more than I can count and simply adding in ts helped find a few long outstanding bugs that kind of went away as the develops found those issues during the migration.

There will always be opinions on benefits of vanilla js, but anything that needs to scale (team wise and communication tax) is simply easier with a static language.