getIteratorFn() — react Function Reference

Architecture documentation for the getIteratorFn() function in ReactSymbols.js from the react codebase.

Function javascript BabelCompiler Entrypoint

Entity Profile

BabelCompiler→ Entrypoint→ getIteratorFn() — react Function Reference

Dependency Diagram

graph TD
  04583ab7_66ef_74f1_ead6_a31e3b80aead["getIteratorFn()"]
  83d2fbad_2242_aa75_e397_ad184684aed6["ReactSymbols.js"]
  04583ab7_66ef_74f1_ead6_a31e3b80aead -->|defined in| 83d2fbad_2242_aa75_e397_ad184684aed6
  style 04583ab7_66ef_74f1_ead6_a31e3b80aead fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/shared/ReactSymbols.js lines 52–63

export function getIteratorFn(maybeIterable: ?any): ?() => ?Iterator<any> {
  if (maybeIterable === null || typeof maybeIterable !== 'object') {
    return null;
  }
  const maybeIterator =
    (MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL]) ||
    maybeIterable[FAUX_ITERATOR_SYMBOL];
  if (typeof maybeIterator === 'function') {
    return maybeIterator;
  }
  return null;
}