颠倒字典中元素的顺序

function reverseDictionary(dict) {
  const reversedDict = Object.keys(dict).reduce((acc, key) => {
    acc[dict[key]] = key;
    return acc;
  }, {});
  return reversedDict;
}

// 示例字典
const dictionary = {
  'apple': 'fruit',
  'carrot': 'vegetable',
  'banana': 'fruit',
  'broccoli': 'vegetable'
};

// 调用函数进行顺序颠倒
const reversedDictionary = reverseDictionary(dictionary);

console.log(reversedDictionary);

{
  'fruit': 'banana',
  'vegetable': 'broccoli'
}