CodeSampleX

Sample

decimal.js 10.6.0: Add and compare money without floating-point rounding errors

Verified sample for npm decimal.js 10.6.0: Add and compare money without floating-point rounding errors. The contract ran on node 22 · linux alpine/x64 …

sha256:4cd0c080ecd2a1087a795b0b2538da767bd966fb9d4f6a0c98c13c97f97d2bec

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
2
Signing keys that built it
2
Declared environment node 22 linux x64 node 22 javascript npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:a2ec939a4c60e243 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-13
node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-17

Case

FIX
Goal
Add and compare money without floating-point rounding errors
Packages
Symbols
  • Decimal
  • toFixed
  • equals
Environment
node 22
Created
2026-08-13T18:14:14Z

Contract

  1. show that native floating point gets the sum wrong
  2. assert Decimal produces the exact sum
  3. assert comparison is exact rather than approximate
  4. assert rounding to cents is explicit and half-up

Files

  • csx.json
  • package-lock.json
  • package.json
  • src/index.mjs
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

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