샘플

Configuring treeshake.moduleSideEffects to false silently removes bare side-effect imports lacking consumed bindings, whereas setting it to 'no-external' preserves internal side-effect modules while pruning external ones.

sha256:92601fd5622eb4523c4c39713473c67395bc60dbed071830173bede138b89a13

케이스

목표

Configuring treeshake.moduleSideEffects to false silently removes bare side-effect imports lacking consumed bindings, whereas setting it to 'no-external' preserves internal side-effect modules while pruning external ones. HOW

패키지

rollup 4.34.8

환경

node

생성일

2026-08-17T11:12:35Z

흔히 이렇게 알고 있다

A bare import with no specifiers, such as import './polyfill.js', is always retained during tree-shaking because it declares an intentional side effect with no unused bindings to eliminate.

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

컨트랙트

• Setting treeshake: { moduleSideEffects: false } causes Rollup to strip bare side-effect imports that have no consumed exports, whereas treeshake: { moduleSideEffects: 'no-external' } retains internal side-effect imports and strips unused external ones.
• Executing a bundle built with moduleSideEffects: false leaves global state uninitialized by the stripped polyfill, while executing a bundle built with moduleSideEffects: 'no-external' triggers the top-level side effects on module load.
• Default tree-shaking (moduleSideEffects: true) retains both internal and external side-effect imports unconditionally.

파일

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

소스 아티팩트 내려받기 (tar.gz)

오리진 시더

csx-seed

검증 영수증

• node 22 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9