Standards proposal would allow annotations to be checked by external type checkers like TypeScript but treated as comments by the JavaScript engine. Microsoft is backing a proposal to bring optional ...

Say goodbye to source maps and compilation delays. By treating types as whitespace, modern runtimes are unlocking a “no-build” TypeScript that keeps stack traces accurate and workflows clean.

This proposal aims to enable developers to add type annotations to their JavaScript code, allowing those annotations to be checked by a type checker that is external to JavaScript. At runtime, a ...

TypeScript 6.0 is the last release built on the JavaScript codebase. A new --stableTypeOrdering flag lets developers match TypeScript 7.0 behavior. TypeScript 7.0, written in Go, is "extremely close ...