CodeSampleX

Sample

parse and extract prerelease components with semver.prerelease

sha256:698fa88ba48f9aa7e706fb2350b99280af6478d2534379cdd3c9ec77917382ec

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
1
Verification level
L4_CROSS_PASS
Declared environment node windows 11 x64 node javascript npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-19

Case

HOW
Goal
parse and extract prerelease components with semver.prerelease
Packages
Symbols
  • prerelease
Environment
node
Created
2026-08-19T05:19:52Z

Contract

  1. prerelease returns an array of string and numeric identifiers for prerelease versions
  2. prerelease returns null when the version has no prerelease component
  3. prerelease returns null for invalid version strings
  4. prerelease extracts prerelease identifiers while ignoring build metadata
  5. prerelease supports loose option for non-standard version strings

Files

  • PROMPT.md
  • csx.json
  • index.js
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.js

Download the source artifact (tar.gz)

Origin Seeder

anonymous