[githubr1]

Fair enough you'd want a like-for-like comparison. Even without changing the default configuration, upgrading the JS packages would improve their speed somewhat.

Unfortunately I am not aware of a large public ES codebase to test against. Most projects use Typescript as you mentioned. You could grab the ES bundle made by several projects and test against that, but that also wouldn't be a fair comparison.

The results in https://user-images.githubusercontent.com/406394/74600139-d1... are very informative. It matches my expectations.

I've been studying the Go code in esbuild - very clean and extensible. I think this project has a lot of potential. Thanks for sharing it with the world.