TypeScript is getting a 10x faster compiler — here’s what it means for developers

Microsoft's decision to port the TypeScript compiler to Go, rather than rewriting it, has resulted in a 10x speed increase, significantly benefiting developers by improving build times, CI/CD performance, and editor responsiveness. The choice of Go over Rust and C# was influenced by its fast compilation times, low memory usage, and semantic similarity to TypeScript, allowing for a smoother transition through programmatic translation rather than rewriting. This shift, known as 'Project Corsa,' promises faster editor startup times, better IntelliSense, and quicker feedback loops in CI/CD pipelines, especially for large codebases. The transition to a Go-based compiler is expected to be fully realized with TypeScript v7, marking a pivotal moment that could inspire further advancements within the TypeScript ecosystem.