CodeSampleX

Sample

convert various time string formats to milliseconds and format milliseconds to strings with ms

sha256:c3dc57bd72eec0e8c02dee9e09adbc105b60a082fd0431ae75056178a6424b1f

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
convert various time string formats to milliseconds and format milliseconds to strings with ms
Packages
Symbols
  • ms
Environment
node
Created
2026-08-19T08:44:08Z

Contract

  1. ms converts short duration strings to milliseconds
  2. ms converts long duration strings with plural units to milliseconds
  3. ms converts decimal duration strings to milliseconds
  4. ms converts negative duration strings to negative milliseconds
  5. ms formats positive millisecond values to short duration strings
  6. ms formats positive millisecond values to long duration strings when long option is enabled
  7. ms formats negative millisecond values with negative prefix
  8. ms returns undefined for unparseable non-time strings and throws for invalid inputs

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous