如何合并具有id的多个数组

function mergeArrays(arrays) {
  let mergedArray = [];

  arrays.forEach(array => {
    array.forEach(element => {
      const existingElement = mergedArray.find(item => item.id === element.id);
      if (!existingElement) {
        mergedArray.push(element);
      } else {
        // 根据需求进行处理，例如更新属性或者忽略
      }
    });
  });

  return mergedArray;
}

// 示例用法
const array1 = [{ id: 1, name: 'A' }, { id: 2, name: 'B' }];
const array2 = [{ id: 2, name: 'C' }, { id: 3, name: 'D' }];
const array3 = [{ id: 4, name: 'E' }];

const merged = mergeArrays([array1, array2, array3]);
console.log(merged);