spence-s / duel

Duel

Inspired by https://github.com/knightedcodemonkey/duel but much simpler.

Use raw typescript to get dual ESM/CJS build, no bundler needed.

For this package to work, all imports must be CJS, ESM only imports will break the CJS build.

How it works

1. Takes your ESM project and copies the whole thing to a temp dir.
2. Renames all your ts files cts file
3. runs typescript build again
4. copies the build back into the original directory