Sample
Handle React 19 silent defaultProps removal on function components and native ref prop passing
sha256:552ef5d3a70a3b9900979b25b8242bc2f67de724201eef3d5255996d2cbff54f
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Case
- Goal
- Handle React 19 silent defaultProps removal on function components and native ref prop passing HOW
- Packages
- react 19.0.0 react-dom 19.0.0
- Environment
- node
- Created
- 2026-08-16T07:54:05Z
Contract
- FunctionComponent.defaultProps is ignored under React 19 jsx-runtime leaving props undefined
- ClassComponent.defaultProps continues to be resolved during React 19 rendering
- ES6 default parameters must be used for default prop values in React 19 function components
- Function components receive ref directly in props in React 19 without React.forwardRef
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs
Download the verified artifact (tar.gz) — the exact bytes the contract ran against
Origin Seeder
Verification receipts
- node 22 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-16 · ed25519:d91480838ac982c9