[GutenYe]

But both Flow and Jest are both developed by the Facebook team. First of all, like the author, I didn't say Flow is bad than TypeScript. Secondly, I moved from Flow to TypeScript last year. Anyway, this going to have a huge impact on Flow ecosystem.

[_the_inflator]

FB devs show that there are no dogmas, only different solutions to different problems. Flow has its merits and was a good start as an experiment back then.

[akmittal]

From last few months react community is embracing Typescript. create-react-app added support for typescript.