A 10x faster TypeScript, but that's not the point

Anders Hejlsberg is a legend in my field, with Turbo Pascal, Delphi, C#, and TypeScript in his palmares. This week, he announced a rewrite of the TypeScript compiler, leading to a stunning 10x performance boost. This remarkable achievement is due to two main factors: the adoption of Go for the compiler and the Language Server Protocol and the high parallelism that Go enables. Previously, the compiler itself was in TypeScript, which severely hindered performance. ...

March 15, 2025