CodeSampleX

Sample

convert human readable time string to milliseconds and format duration with ms

sha256:b0d8dcb9a30793a96bd53bf020820687e698ca95854d077bae28f277da06c22f

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 10

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 human readable time string to milliseconds and format duration with ms
Packages
Symbols
  • ms
Environment
node 22
Created
2026-08-19T10:18:12Z

Contract

  1. ms parses human-readable duration strings into milliseconds (e.g. '2 days' to 172800000, '1d' to 86400000, '10h' to 36000000, '2.5 hrs' to 9000000, '1m' to 60000, '5s' to 5000)
  2. ms formats milliseconds into short duration strings (e.g. 60000 to '1m', 3600000 to '1h')
  3. ms formats milliseconds into long human-readable strings when given options { long: true } (e.g. 60000 to '1 minute', 120000 to '2 minutes', 3600000 to '1 hour')
  4. ms returns undefined for invalid duration strings and throws an Error for empty string or invalid input

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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