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Component() — react Function Reference

Architecture documentation for the Component() function in error.useCallback-set-ref-nested-property-dont-preserve-memoization.js from the react codebase.

Function javascript TestingUtilities Fixtures

Entity Profile

Dependency Diagram

graph TD
  2f10d972_cef6_7e89_3232_2f7acf71bc8a["Component()"]
  830d5bd1_943c_fdb2_573d_431f086759c2["error.useCallback-set-ref-nested-property-dont-preserve-memoization.js"]
  2f10d972_cef6_7e89_3232_2f7acf71bc8a -->|defined in| 830d5bd1_943c_fdb2_573d_431f086759c2
  style 2f10d972_cef6_7e89_3232_2f7acf71bc8a fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.useCallback-set-ref-nested-property-dont-preserve-memoization.js lines 4–16

function Component(props) {
  const ref = useRef({inner: null});

  const onChange = useCallback(event => {
    // The ref should still be mutable here even though function deps are frozen in
    // @enablePreserveExistingMemoizationGuarantees mode
    ref.current.inner = event.target.value;
  });

  ref.current.inner = null;

  return <input onChange={onChange} />;
}

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Defined In

Source

Frequently Asked Questions

What does Component() do?
Component() is a function in the react codebase, defined in compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.useCallback-set-ref-nested-property-dont-preserve-memoization.js.
Where is Component() defined?
Component() is defined in compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.useCallback-set-ref-nested-property-dont-preserve-memoization.js at line 4.

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