Convert the codebase to modules by jakebailey · Pull Request #51387 · microsoft/TypeScriptThis is it; the PR that converts the TypeScript repo from namespaces to modules. TL;DR: The TypeScript compiler is now implemented internally with modules, not namespaces. The compiler is now 10-25% faster. tsc is now 30% faster to start. Our npm package is now 43% smaller. More improvements are in the works. If you're reading this and the 5.0 beta is out, now that the above results were as of thi
Testing static types in TypeScript
