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Where in the source is useState defined?

About facebook/react · 2 messages · last activity 6/14/2026

Question

Where in the source is useState defined?

RepoPilot

Based on the available repository data, I cannot pinpoint the exact file and line where useState is defined. The data shows useState being imported from the 'react' package in files like [compiler/apps/playground/components/StoreContext.tsx:L11], but the actual implementation file from the React core package is not included in the provided repository data.

The useState hook implementation would typically be found in the React core package source files (likely in packages/react/src/), but that specific file isn't represented in the data I have access to.

FOLLOW_UPS:

  • Which React package contains core hooks?
  • How does useState manage component state internally?
  • Where is the useState hook exported from in React?

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