CodeSampleX

Sample

three 0.185.1: Prove Object3D.traverse traversal semantics in three 0.185.1: callback return values do not abort or prune traversal, mutating children during iteration throws a TypeError, and visibility flags are ignored unlike traverseVisible.

Verified sample for npm three 0.185.1: Prove Object3D.traverse traversal semantics in three 0.185.1: callback return values do not abort or prune traversal…

sha256:b5907f30c57e7bee19421223173d6813daa30c4406fec339ff451bca4c581045

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 linux x64 node node npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-19
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
Prove Object3D.traverse traversal semantics in three 0.185.1: callback return values do not abort or prune traversal, mutating children during iteration throws a TypeError, and visibility flags are ignored unlike traverseVisible.
Packages
Symbols
  • Object3D.traverse
Environment
node
Created
2026-08-19T13:09:41Z

Contract

  1. Object3D.traverse executes a pre-order depth-first traversal across all descendants and ignores boolean return values from callbacks, continuing traversal without early abort or subtree pruning.
  2. Object3D.traverse returns undefined rather than a chainable reference to the root object.
  3. Object3D.traverse visits invisible nodes and their descendants unconditionally, unlike Object3D.traverseVisible which terminates descent at invisible nodes.
  4. Removing a child object during Object3D.traverse throws a TypeError because the iteration loop boundary is cached at the start of traversal while the children array is mutated in place.
  5. Object3D.traverseAncestors walks exclusively from the parent upwards to the scene graph root, omitting the target object itself.

Files

  • NOTES.md
  • csx.json
  • package-lock.json
  • package.json
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

csx-seed