TypeScript 5.4, a planned update to the strongly typed JavaScript variant from Microsoft, is now generally available. New capabilities in version 5.4 include preserved narrowing within function ...

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.

Microsoft is progressing on its effort to port the TypeScript compiler and language service from TypeScript/JavaScript to native Go code, a project aligned with the upcoming TypeScript 7.0 release.