Function closeSubmenu

packages/react-stately/src/menu/useMenuTriggerState.ts:85–94

(triggerKey: Key, level: number)

  };

  let closeSubmenu = (triggerKey: Key, level: number) => {
    setExpandedKeysStack(oldStack => {
      let key = oldStack[level];
      if (key === triggerKey) {
        return oldStack.slice(0, level);
      } else {
        return oldStack;
      }
    });
  };

  return {
    focusStrategy,