Component() — react Function Reference

Source Code

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/allow-ref-lazy-initialization-with-logical.js lines 5–14

function Component(props) {
  const ref = useRef(null);
  if (ref.current == null) {
    // the logical means the ref write is in a different block
    // from the if consequent. this tests that the "safe" blocks
    // extend up to the if's fallthrough
    ref.current = props.unknownKey ?? props.value;
  }
  return <Child ref={ref} />;
}