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Component() — react Function Reference

Architecture documentation for the Component() function in repro-missing-memoization-lack-of-phi-types.js from the react codebase.

Function javascript TestingUtilities Fixtures

Entity Profile

Dependency Diagram

graph TD
  fb33ea3f_71c1_9a86_ac93_618e41de276f["Component()"]
  585b6504_4366_36fd_e06c_4b42c9306c75["repro-missing-memoization-lack-of-phi-types.js"]
  fb33ea3f_71c1_9a86_ac93_618e41de276f -->|defined in| 585b6504_4366_36fd_e06c_4b42c9306c75
  style fb33ea3f_71c1_9a86_ac93_618e41de276f fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/repro-missing-memoization-lack-of-phi-types.js lines 5–19

function Component() {
  const data = useFragment();
  const nodes = data.nodes ?? [];
  const flatMap = nodes.flatMap(node => node.items);
  const filtered = flatMap.filter(item => item != null);
  const map = useMemo(() => filtered.map(), [filtered]);
  const index = filtered.findIndex(x => x === null);

  return (
    <div>
      {map}
      {index}
    </div>
  );
}

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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/repro-missing-memoization-lack-of-phi-types.js.
Where is Component() defined?
Component() is defined in compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/repro-missing-memoization-lack-of-phi-types.js at line 5.

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