如何获取数组中“集合”的总数量？

function getCollectionCount(arr) {
  let count = 0;
  for (let i = 0; i < arr.length; i++) {
    if (Array.isArray(arr[i]) || arr[i] instanceof Set || arr[i] instanceof Map) {
      count++;
    }
  }
  return count;
}

// 示例用法
const array = [1, [2, 3], new Set([4, 5]), { name: 'John' }];
const collectionCount = getCollectionCount(array);
console.log('集合的总数量：', collectionCount);