示例
react 19.2.8: Mount a React 19 client root with a synchronously committed context-aware portal and handle its event and unmount boundaries
已验证示例 — npm react 19.2.8: Mount a React 19 client root with a synchronously committed context-aware portal and handle its event and unmount boundaries.…
sha256:ac9c6f7661fafad6db031b6eb109f10a581f711946c7eb8faf50c8c8101af4f7
本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。
提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。
MIT-0
执行证据
声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。
- 证据依据
- 签名契约通过
- 验证回执
- 2
- 构建过它的签名密钥
- 2
声明的环境
node 24.13 windows amd64 node 24.13 javascript npm 11
验证运行环境
| 环境 | 契约 | 阶段 | 运行日期 |
|---|---|---|---|
| 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 |
| node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-18 |
案例
HOW- 目标
- Mount a React 19 client root with a synchronously committed context-aware portal and handle its event and unmount boundaries
- 符号
-
- react-dom/client.createRoot
- react-dom.flushSync
- react-dom.createPortal
- react.createContext
- react.useContext
- 环境
- node 24.13.1
- 创建时间
- 2026-08-17T02:01:43Z
契约
- createRoot is exported from react-dom/client and is absent from the react-dom root entrypoint
- flushSync around root.render commits the root DOM before flushSync returns
- createPortal places its child in a separate target while preserving context from its React ancestors
- a click from a portal child bubbles to its React ancestor despite separate DOM ancestry
- root.unmount synchronously removes both root and portal DOM
- root.render after root.unmount throws Cannot update an unmounted root
文件
- NOTES.md
- csx.json
- package-lock.json
- package.json
- src/index.mjs
- test/contract.mjs