查找对象数组的所有公共元素- Javascript

function findCommonElements(arr) {
  return arr.reduce((commonElements, currentElement) => {
    const filteredArray = arr.filter(element => element === currentElement);
    if (filteredArray.length === arr.length && !commonElements.includes(currentElement)) {
      commonElements.push(currentElement);
    }
    return commonElements;
  }, []);
}

// 示例用法
const objects = [
  { id: 1, name: 'John' },
  { id: 2, name: 'Jane' },
  { id: 3, name: 'John' },
  { id: 4, name: 'Jane' },
  { id: 5, name: 'John' }
];

const commonElements = findCommonElements(objects);
console.log(commonElements);