Sample
hasown 2.0.4: hasOwn
Verified sample for npm hasown 2.0.4: hasOwn. The contract ran on node 22 · linux alpine/x64 · docker and passed: hasOwn returns true for direct own…
sha256:c886ab294bb3afe864b94927cf821cc736b627449a5bc3a9ae3c326afa5e51dd
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
- 1
- Signing keys that built it
- 1
Declared environment
node 22 linux 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
- verify pkg:npm/hasown@2.0.4
- Packages
- Symbols
-
- hasOwn
- Environment
- node 22
- Created
- 2026-08-18T17:58:24Z
Contract
- hasOwn returns true for direct own properties on plain objects including undefined and null values
- hasOwn returns false for inherited prototype properties like toString and valueOf
- hasOwn returns true for valid array indices and length property while returning false for out of bounds indices and array prototype methods
- hasOwn works correctly on objects created with Object.create(null) lacking Object prototype methods
- hasOwn correctly identifies properties on objects where hasOwnProperty is shadowed or overridden
- hasOwn returns true for properties with falsy values such as false, empty string, and zero
- hasOwn supports Symbol properties when Symbol is available in the environment
Files
- PROMPT.md
- csx.json
- index.js
- package-lock.json
- package.json
- spec.json
- test/contract.js
Origin Seeder
anonymous