Syntax - Tasty Web Development Treats 884: Typescript Just Got 10x Faster
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Mar 11, 2025 
In a fascinating discussion, Anders Hejlsberg, the creator of TypeScript and lead architect at Microsoft, and Daniel Rosenwasser dive into TypeScript's groundbreaking shift to native code. They unveil how this leap enhances compilation speed, reducing large project compile times dramatically. The conversation covers the challenges and intricacies of porting to Go, the benefits of parallel type checking, and how these advancements pave the way for AI-assisted development. Expect a deep dive into performance evolution and community engagement in tech!
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TypeScript Compiler Goes Native
- The TypeScript compiler is being ported to native code, resulting in a 10x speed improvement.
- This will affect parsing, type checking, emitting, and the entire pipeline.
AI-Assisted Development Opportunities
- The speed improvement allows for rethinking language service features, especially with AI assistance.
- Real-time semantic checking of AI-generated code and enhanced contextual information for LLMs are now possible.
Type Inference Warning
- Do not over-rely on type inference, even with the performance boost.
- TypeScript's Turing-complete type system can lead to non-termination issues with excessive inference.