CodeSampleX

Sample

construct and evaluate version comparisons with semver.Comparator

sha256:0b2b7da5f37eee33419779aeecb4aacaeb8ec218598744c4e5e3e91c38e33c55

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
construct and evaluate version comparisons with semver.Comparator
Packages
Symbols
  • Comparator
Environment
node
Created
2026-08-19T03:17:06Z

Contract

  1. Comparator constructor parses operator and SemVer version from comparison strings
  2. Comparator test evaluates whether a version string or SemVer instance satisfies the comparison
  3. Comparator intersects determines whether two comparators have overlapping version ranges
  4. Comparator supports empty string comparators that match any version
  5. Comparator respects includePrerelease option for matching prerelease versions
  6. Comparator throws TypeError for invalid comparator expressions and test returns false for non-matching or invalid versions

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