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- TypeScript Will Now Be 10x Faster
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The engineers at Microsoft have done something that no one expected.
Under the project codenamed “Corsa”, the TypeScript team led by Anders Hejlsberg (the creator of C#, Turbo Pascal, Delphi, and TypeScript) has ported the TypeScript language from TypeScript to Golang compilation.
To put it simply, until now, TypeScript was written in TypeScript (surprise!). And, the problem with that is it is slow.
TypeScript does not have its own runtime. It is a superset of JavaScript. Every TypeScript application gets compiled to JavaScript and then runs on your browser or something like Node.js or Bun.
TypeScript is nowhere close to a low-level programming language to perform optimizations through pointers or multi-threading (for example).
The developers of TypeScript ported the entire language, i.e. converted line-by-line, into Golang.
With this, the Go compiler for TS is now 10x faster than the original TS compiler.
‘Native’ refers to the Go compilation in this image
Everything related to TS will now be 10x faster - the code compilation, the suggestions in your IDE, the error detection, the linting - everything.
What’s arguably even more incredible is that the team kept their egos aside and chose the best tool for this improvement.
The team did not choose C# which is Microsoft’s baby and could have been a great choice too. They also avoided other good and more hyped choices like Rust and Zig. They chose Go because after multiple studies, they found it as the best choice.
It might sound simple but in the corporate world, this is a bold choice. Someone stood up for what is right for performance (Go) rather than what could have been better for business (C#).
The current TypeScript version is 5.8 and the new native TypeScript (Go) will be released with TypeScript version 7.0. So this may be a few months or even more than an year away.
Here is the staging repository for typescript-go.
If you use TypeScript (or JavaScript), I strongly recommend you to watch this video by the OG Anders Hejlsberg himself -
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