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useBar() — react Function Reference

Architecture documentation for the useBar() function in useCallback-extended-contextvar-scope.tsx from the react codebase.

Function tsx TestingUtilities Fixtures

Entity Profile

Dependency Diagram

graph TD
  d5e6c5ef_b8b3_6fc5_7e50_6db82a1b5199["useBar()"]
  4c472bb2_cccd_d9fe_a330_d384d1ab2354["useCallback-extended-contextvar-scope.tsx"]
  d5e6c5ef_b8b3_6fc5_7e50_6db82a1b5199 -->|defined in| 4c472bb2_cccd_d9fe_a330_d384d1ab2354
  style d5e6c5ef_b8b3_6fc5_7e50_6db82a1b5199 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/useCallback-extended-contextvar-scope.tsx lines 16–27

function useBar({a, b}, cond) {
  let x = useIdentity({val: 3});
  if (cond) {
    x = b;
  }

  const cb = useCallback(() => {
    return [a, x];
  }, [a, x]);

  return <Stringify cb={cb} shouldInvoke={true} />;
}

Domain

Subdomains

Defined In

Source

Frequently Asked Questions

What does useBar() do?
useBar() is a function in the react codebase, defined in compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/useCallback-extended-contextvar-scope.tsx.
Where is useBar() defined?
useBar() is defined in compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/useCallback-extended-contextvar-scope.tsx at line 16.

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