CodeSampleX

Sample

validate and normalize semantic version ranges with semver.validRange

sha256:b66d5a118a5445b4fe508fc4ead4ac0541c27048626ed17b4c439d5a209c74f3

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 22 windows 11 x64 node 22 javascript npm 11

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
validate and normalize semantic version ranges with semver.validRange
Packages
Symbols
  • validRange
Environment
node 22
Created
2026-08-19T03:04:41Z

Contract

  1. semver.validRange parses and normalizes caret, tilde, and hyphen range expressions into comparator sets
  2. semver.validRange returns the normalized wildcard string for wildcard and empty range expressions
  3. semver.validRange returns null when given an invalid range string
  4. semver.validRange supports options including loose and includePrerelease

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