I write a fair bit of C#. It feels like the prequal to Typescript. Its lack of discriminated unions and type narrowing feels like a step back from Typescript.
Given that TypeScript is driven in late part by one of the main long term (until they moved to TS) C# language designers, I feel a lot of the core of the TS type system is what they wanted to do in C# but for legacy reasons just can’t.
