Recordsnpmreact-is17.0.2react-is.isLazy
OS × runtime at a glance
Reading a cell: The number is how many recorded observations the rate divides — one build files an observation per stage it reached, so it counts neither builds nor machines nor people. The document beside it is a different fact from a different source: whether a sample exists at that coordinate, and how our own run of it went there.
- no sample at this coordinate yet
- there is a sample here, and nothing of ours has run it at this coordinate yet
- there is a sample here, and our run of it at this coordinate came back clean
- there is a sample here, and our run of it at this coordinate failed
- there is a sample here, and this coordinate records both a passing and a failing run of it
- nothing recorded — unknown, never "works" and never "broken"
- there is a level below this cell — click to open it
A document means there is a sample at that coordinate. Whether one EXISTS is a fact about this release and this API and does not change with OS, runtime or package manager; its COLOUR is how that sample ran in the environment you are looking at.
Published samples
- react-is 17.0.2: isContextConsumer, isContextProvider, isElement 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. HOWreact-is.isContextConsumerreact-is.isContextProviderreact-is.isElementreact-is.isForwardRefreact-is.isFragmentreact-is.isLazyreact-is.isMemoreact-is.isPortalreact-is.isProfilerreact-is.isStrictModereact-is.isSuspensereact-is.isValidElementTypereact-is.typeOf MIT-0 · 2026-08-27
Compatibility matrix
Project-level observations and symbol/contract verifications are counted separately and never combined.
These counts do not distinguish how the symbol was called: overloads, argument shapes and options are pooled together. What a particular call shape does is proven by a sample's contract, not by these numbers.
| Environment | Confidence | Observations | Verified | Pass rate | Peers | Last seen |
|---|---|---|---|---|---|---|
| node 22 · JS · npm · linux musl · docker
Verified: CONTRACT 1✓
|
LOW | 0 | 1 | 100% | 0 · 1✓ | 2026-08-27 |
| node 22.23 · JS · npm · linux glibc
Observations: PROJECT_PROCESS 1✓
|
LOW | 1 | 0 | 100% | 1 | 2026-08-30 |
snapshot · 2026-08-30
Failure clusters
-
observed PROJECT_PROCESS ERR_PACKAGE_PATH_NOT_EXPORTED Evidence gap ×7 17.0.2 → 18.3.1 executionContext=node · os=linux · runtime=node@22.23Evidence quality: legacy-evidence-incomplete · Environment variants: 2 · First recorded: 2026-08-21 · Last seen: 2026-08-27Diagnostic re-verification candidate
-
observed PROJECT_TEST Evidence gap ×2 17.0.2 → 19.2.8 executionContext=node · os=windows · runtime=node@24.13Evidence quality: legacy-evidence-incomplete · Environment variants: 2 · First recorded: 2026-08-17 · Last seen: 2026-08-21Diagnostic re-verification candidate
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observed PROJECT_TYPECHECK Evidence gap ×1 17.0.2 executionContext=node · moduleSystem=cjs · os=windows · runtime=node@24.13Evidence quality: legacy-evidence-incomplete · Environment variants: 1 · First recorded: 2026-08-21 · Last seen: 2026-08-21