Function apply

packages/react-aria/src/tokenfield/useTokenField.ts:125–131

(fn: (value: TokenFieldValue) => TokenFieldValue)

  let nextValue = useRef<TokenFieldValue | null>(null);
  let apply = (fn: (value: TokenFieldValue) => TokenFieldValue) => {
    state.setValue(value => {
      let newValue = fn(value);
      nextValue.current = newValue;
      return newValue;
    });
  };

  // Composition events are not cancelable. The browser will mutate the DOM, making it out of sync with React.
  // To account for this, we prevent React from re-rendering during composition, and track DOM mutations performed