Microsoft shipped the latest iteration of its type-infused superset of JavaScript, TypeScript 5.5, introducing inferred type predicates, control flow narrowing, JSDoc @import and other enhancements.

TypeScript 5.5, the latest version of Microsoft’s strongly typed JavaScript variant, has been officially released. The update brings improvements ranging from performance and size optimizations to ...

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.