My favourite languages are F# and OCaml, and from my perspective, TypeScript is a far better language than C#.

Typescript’s types are far more adaptable and malleable, even with the latest C# 15 which is belatedly adding Sum Types. If I set TypeScript to its most strict settings, I can even make it mimic a poor man’s Haskell and write existential types or monoids.

And JS/TS have by far the best libraries and utilities for JSON and xml parsing and string manipulation this side of Perl (the difference being that the TypeScript version is actually readable), and maybe Nushell but I’ve never used Nushell in production.

Recently I wrote a Linux CLI tool for managing podman/quadlett containers and I wrote it in TypeScript and it was a joy to use. The Effect library gave me proper Error types and immutable data types and the Bun Shell makes writing shell commands in TS nearly as easy as Bash. And I got it to compile a single self contained binary which I can run on any server and has lower memory footprint and faster startup time than any equivalent .NET code I’ve ever written.

And yes had I written it in rust it would have been faster and probably even safer but for a quick a dirty tool, development speed matters and I can tell you that I really appreciated not having to think about ownership and fighting the borrow checker the whole time.

TypeScript might not be perfect, but it is a surprisingly good language for many domains and is still undervalued IMO given what it provides.