Ask HN: Do You Prefer Typescript or Flow? Why?

I prefer TypeScript. It comes down to two major issues:

1. Tooling; TypeScript's tooling (especially in VS/VSCode) is vastly superior to Flow's tooling. It's easy to think of type systems only as things that prevent bugs, but type systems also give your editor a lot of information that can make development easier. Nuclide has some flowtype integration, but nothing close to what VS/VSCode does with type information.

2. Design and syntax. Flow is an add-on to a language, and TypeScript is a language - and it shows. TypeScript is easier to write, easier to read, and doesn't require as many workarounds and hacks, in my experience.

I prefer Typescript because it is more popular. This argument seems circular, but given the nature of both of them, the more popular it is the faster the feedback loop will be in terms of improving it. Not to mention documentation and familiarity for other developers.

You get more type coverage faster with flow. http://thejameskyle.com/adopting-flow-and-typescript.html