サンプル

Differentiate import specifier resolution, extensionless imports, and package exports maps across TypeScript bundler, node16, and nodenext resolution modes

sha256:b725d0d71b44bbc7f011ed622cfaa5f379af031cab0923bc7e7dd9cd3820b7bc

PUBLISHED L3_CONTRACT_PASS MIT-0

ケース

ゴール: Differentiate import specifier resolution, extensionless imports, and package exports maps across TypeScript bundler, node16, and nodenext resolution modes HOW
パッケージ: typescript 5.8.2
環境: node
作成日: 2026-08-15T14:32:16Z

assert bundler allows extensionless relative imports in ESM while node16 and nodenext reject them with TS2835
assert node16 and nodenext require relative .js specifiers to resolve .ts files in ESM contexts
assert bundler resolves directory index imports in ESM while node16 rejects extensionless directory imports with TS2834
assert direct .ts extensions require allowImportingTsExtensions and fail under standard node16 and bundler with TS5097
assert package exports condition selects import for ESM and require for CJS under node16 but defaults to import under bundler
assert unexported package subpaths are blocked under node16 and bundler via exports encapsulation but resolve under legacy node10

node 22 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-15 · ed25519:d91480838ac982c9