샘플

Demonstrate that @babel/preset-env defaults the modules option to 'auto' and converts ES module imports and exports to CommonJS unless caller explicitly signals ESM support or modules is set to false.

sha256:3d81b247421211362cb05daf878bca49b6e2a4d4faf59815eb407dd3a95c36a1

케이스

목표

Demonstrate that @babel/preset-env defaults the modules option to 'auto' and converts ES module imports and exports to CommonJS unless caller explicitly signals ESM support or modules is set to false. HOW

패키지

@babel/preset-env 7.26.9 @babel/core 7.26.9

환경

node

생성일

2026-08-17T01:46:29Z

흔히 이렇게 알고 있다

Targeting modern environments like Node 22 or setting targets.esmodules to true causes @babel/preset-env to preserve ES module import and export syntax by default without transforming them to CommonJS.

이 샘플의 작성자가 여기서 개발자나 모델이 기대할 법한 내용으로 적어둔 것이다. 아래 계약이 실제로 실행된 것이다.

컨트랙트

• Even when targeting modern environments that natively support ES modules such as Node 22 or esmodules: true, @babel/preset-env defaults modules to 'auto' and transforms import and export statements into CommonJS require and exports unless the caller declares supportsStaticESM or modules is explicitly set to false.
• assert default modules: 'auto' transforms import and export statements to require() and exports without a caller
• assert targeting modern node or esmodules: true still compiles ESM to CommonJS when caller does not declare supportsStaticESM
• assert dynamic import expressions are transformed to require interop unless caller declares supportsDynamicImport
• assert caller declaring supportsStaticESM: true preserves static import and export declarations as ESM syntax
• assert caller declaring supportsDynamicImport: true preserves dynamic import() expressions
• assert explicit modules: false preserves ESM import/export syntax regardless of caller metadata
• assert explicit modules: 'commonjs' transforms ESM to CommonJS even when caller declares supportsStaticESM: true

파일

• NOTES.md
• csx.json
• package-lock.json
• package.json
• test/contract.mjs

검증된 아티팩트 내려받기 (tar.gz) — 컨트랙트가 실제로 실행된 바로 그 바이트

오리진 시더

csx-seed

검증 영수증

• node 22 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9