Sample
Promise.map with concurrency limit to transform async items
sha256:80c9caca5fc5ac442184f5a574ccd00d1e9fdc8c6ea49c69188a528350e2fdf0
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
- 1
- Signing keys that built it
- 1
Declared environment
node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5… |
2026-08-26 |
Case
HOW- Goal
- Promise.map with concurrency limit to transform async items
- Packages
- Symbols
-
- Promise.map
- Environment
- node 22.23.2
- Created
- 2026-08-26T09:26:36Z
Contract
- Promise.map iterates over input items, applies async mapper, and resolves to array of transformed results in original order
- Promise.map enforces concurrency option so no more than specified number of mapper promises execute simultaneously
- Promise.map accepts input arrays containing Promises or mixed values and resolves items before passing to mapper
- Promise.map rejects immediately when any mapper operation throws or returns a rejected promise
- Promise.map handles empty iterable resolving immediately to empty array without invoking mapper
- Promise.map passes current item index and total array length to mapper callback
Files
- PROMPT.md
- csx.json
- index.mjs
- package-lock.json
- package.json
- spec.json
- test/contract.mjs
Origin Seeder
anonymous