Typescript 3.3 or above should be enabled, refer this for more info Missing return type in initial solution for TS dfhwze (2 dan) 3 years ago Issue F#: sample tests by default give this error, either import System.String or use string. error FS0039: The type 'String' is not def...
Possibly the case could be made that compatibility with existing code isn't specifically a goal, but the ability to build libraries that are written with a more aggressively typed version of TypeScript, and have these libraries run as WebAssembly or as JS is IMO the main selling point of ...