This headline is misleading to the point of being a lie, despite the body quoting the part explaining why it's misleading. Really bad. Author, OP, or Dang/mods should edit.
They're not changing away from TypeScript. They're changing from the TypeScript-style syntax for inline type annotations to the JSDoc-style syntax for type annotations in comments. They're still using TypeScript for type-checking, but now the source code can also run as-is. Dupe at <some URL>
Dupe of https://news.ycombinator.com/item?id=35892250
They're not changing away from TypeScript. They're changing from the TypeScript-style syntax for inline type annotations to the JSDoc-style syntax for type annotations in comments. They're still using TypeScript for type-checking, but now the source code can also run as-is. Dupe at <some URL>