示例
core-js 3.42.0: Demonstrate that core-js/configurator overrides polyfill aggressiveness via usePolyfill, useNative, and useFeatureDetection, and that useNative still installs polyfills for undefined features.
已验证示例 — npm core-js 3.42.0: Demonstrate that core-js/configurator overrides polyfill aggressiveness via usePolyfill, useNative, and useFeatureDetection, and…
sha256:e5be7751aab154725b5932787866e2f8beb21e17e99d2d2d8e5ba395c71f8f2c
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 |
2026-08-18 |
| 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
- Demonstrate that core-js/configurator overrides polyfill aggressiveness via usePolyfill, useNative, and useFeatureDetection, and that useNative still installs polyfills for undefined features.
- 符号
-
- core-js/configurator
- 环境
- node
- 创建时间
- 2026-08-18T00:52:08Z
契约
- Calling core-js/configurator with usePolyfill forces replacement of compliant native methods upon module import, whereas useNative preserves native implementations but still installs polyfills when the target property is undefined.
- usePolyfill with Array.prototype.toReversed replaces the native implementation.
- Normalization accepts Array#findLast and array.findlastindex interchangeably.
- useNative with structuredClone preserves the native structuredClone implementation.
- useFeatureDetection resets earlier forced aggressiveness overrides back to feature detection.
- useNative with Iterator.range installs the polyfill when the native property is absent.
- Calling configurator after a module has already been imported does not retroactively replace already-evaluated methods.
文件
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs