TypeScript 编译器本身由 TypeScript/JavaScript 编写，运行在 Node.js 的 V8 引擎上。这套架构在项目早期运转良好，但随着代码库膨胀到 50 万行，性能天花板越来越明显。

Build type-safe JavaScript applications in less time with Microsoft’s native port of TypeScript built with Go.

Microsoft says TypeScript 7, announced July 8, brings native Go performance to VS Code, Visual Studio and other editors.