I actually have done a few projects with TS, but none of them were really put to the full professional SDLC test. e.g. managing upstream dependency changes, lot

I actually have done a few projects with TS, but none of them were really put to the full professional SDLC test. e.g. managing upstream dependency changes, lots of developers contributing, business constraints, etc. Personally I am very bullish on Deno, which goes beyond just native type system, but we'll see how that project ultimately plays out.