示例
react 19.0.0: Handle React.Children key rewriting, Fragment opacity, null return shapes in map, and cloneElement key string coercion traps in React
已验证示例 — npm react 19.0.0: Handle React.Children key rewriting, Fragment opacity, null return shapes in map, and cloneElement key string coercion traps in…
sha256:40432561f0a52d20a9a1ac819998ffd8ede83d0436787b49bcf7949a41cf71a9
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 linux x64 node node npm
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 |
2026-08-16 |
| 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
- Handle React.Children key rewriting, Fragment opacity, null return shapes in map, and cloneElement key string coercion traps in React
- 符号
-
- react.Children.toArray
- react.Children.map
- react.Children.only
- react.Children.count
- react.cloneElement
- 环境
- node
- 创建时间
- 2026-08-16T07:54:04Z
契约
- assert React.Children.toArray rewrites user keys with '.$' prefix, assigns '.0' to unkeyed items, and recursively flattens nested arrays with index prefixes
- assert React.Children.toArray and Children.count treat React.Fragment as a single opaque element without unwrapping its children
- assert React.Children.toArray filters out null, undefined, and booleans while strictly preserving numeric 0 and empty string
- assert React.Children.map returns null or undefined on null or undefined input instead of an empty array, and flattens array return values
- assert React.Children.only throws on arrays (including single-item arrays) and primitives, requiring a single valid React element
- assert React.cloneElement preserves keys when passed key: undefined, coerces key: null to string 'null', and gives precedence to trailing children arguments
文件
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs