Show HN: ts-blank-space – fast TypeScript type-stripper(bloomberg.github.io)

22 pointsby tchetwin2 lata temu4 comments

bloomberg.github.io

Show HN: ts-blank-space – fast TypeScript type-stripper

https://bloomberg.github.io/ts-blank-space/

We've built a new type-stripping compiler for TypeScript source: `ts-blank-space`

It's:

* 5.6x faster than `tsc` due to zero-codegen

* Written in TypeScript

* Uses the official TypeScript parser

* Accurate/preserved source locations

* In used in production

It uses the same novel approach that inspired Node 22.6.0's `--experimental-strip-types` functionality, released last month

4 comments

joshstrange2 lata temu

I assume this is named (also) as reference to Taylor Swift’s “Blank Space”? If so, very clever.

aclaymore2 lata temu

Hi, I'm the author of ts-blank-space and happy to answer any questions you have :wave:

matt-attack2 lata temu

So is the idea that you would run a normal compiler once in your production pipeline to check syntax, and then re-run it with ts-blank-space to generate the final bundle?

Clearly you can’t eliminate the syntax checking correct?

aclaymore2 lata temu

Yes and the TypeScript ASTs generated while checking the code can be re-used when then running ts-blank-space to generate the JavaScript. Only generating the ASTs once is a significant performance win as this work takes much longer than the type-stripping work.