build: support ES modules #2596
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Description
This package can't be used in a node environment using ESM as it's neither declared as
"type": "module"
nor does it include.mjs
extensions for the files in themodule
main field.Since TSC is not able to produce proper ESM files with
.mjs
extensions I opted to usetsup
to compile the ESM files, and I also had to add@swc/core
to keep this backwards compatible with thees5
target. I don't think there's much point in supporting back to es5 for an ESM, but I'm keeping it for now to avoid making this a breaking change.Fixes #2353
Type of change
Checklist
yarn test
)yarn lint
). Fix it withyarn lint:fix
in case of failure.yarn lint:types
).