Sample
Portal rendering into external DOM nodes and event bubbling with React 18 createPortal
sha256:7cbbf70331234b453cefa0c06a2e9812827e0f9269deeb8e497511cb6671cd0f
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 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5… |
2026-08-26 |
Case
HOW- Goal
- Portal rendering into external DOM nodes and event bubbling with React 18 createPortal
- Symbols
-
- createPortal
- Environment
- node 22.23.2
- Created
- 2026-08-26T14:40:59Z
Contract
- createPortal is exported as a function from react-dom
- createPortal throws descriptive error when container is null or invalid
- renderPortal renders React element into specified external DOM container
- portal events bubble up through React component tree to ancestor handlers
- updating parent component re-renders portal children in target container
- unmounting parent component removes portal children from external DOM container
Files
- NOTES.md
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.mjs
- test/contract.mjs
Origin Seeder
anonymous