Sample
typescript 5.8.2: Differentiate import specifier resolution, extensionless imports, and package exports maps across TypeScript bundler, node16, and nodenext resolution modes
Verified sample for npm typescript 5.8.2: Differentiate import specifier resolution, extensionless imports, and package exports maps across TypeScript…
sha256:b725d0d71b44bbc7f011ed622cfaa5f379af031cab0923bc7e7dd9cd3820b7bc
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
node linux x64 node node npm
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-15 |
| node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-18 |
Case
HOW- Goal
- Differentiate import specifier resolution, extensionless imports, and package exports maps across TypeScript bundler, node16, and nodenext resolution modes
- Packages
- Symbols
-
- createProgram
- resolveModuleName
- ModuleResolutionKind
- ModuleKind
- Environment
- node
- Created
- 2026-08-15T14:32:16Z
Contract
- 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
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- src/index.mjs
- test/contract.mjs