As far as I know there are no plans to directly compile (JIT or otherwise) typescript. Typescript is always (again, as far as I know) transpiled into javascrip

As far as I know there are no plans to directly compile (JIT or otherwise) typescript. Typescript is always (again, as far as I know) transpiled into javascript whereupon it gets JIT'd in the browser just like "normal" javascript. The gains that come from using typescript are productivity gains: in big projects static typing, generics, decorators, and interfaces are supposed to be a boost to productivity, not a boost to performance.