> Eventually a C# that compiles to JavaScript? That actually existed internally at MS, along with many other projects to improve developing large JS codebases,

> Eventually a C# that compiles to JavaScript? That actually existed internally at MS, along with many other projects to improve developing large JS codebases, most of which have fallen by the wayside. There was even a Flow-like compiler that worked with type annotations in comments. TypeScript has won out, although there is a LOT of code written in these other projects.