JavaScript 按相同的值对相似的对象进行分组

Question

我有一个对象数组，我需要按相同的值对它们进行分组，我需要按多维数组对它们进行分组

const source = [
                 {name: 'A', age: 23, id: 0}, 
                 {name: 'A', age: 23, id: 1},
                 {name: 'B', age: 15, id: 34}, 
                 {name: 'B', age: 15, id: 45},
                 {name: 'B', age: 15, id: 32},
                 {name: 'C', age: 15, id: 32},
               ];


[

像这个结构一样，所有相同的对象都应该在一个数组中按数组分组。

  [
   {name: 'A', age: 23, id: 0}, 
   {name: 'A', age: 23, id: 1}
  ],
  [
   {name: 'B', age: 15, id: 34}, 
   {name: 'B', age: 15, id: 45},
   {name: 'B', age: 15, id: 32}
  ],
  [
   {name: 'C', age: 15, id: 32},
  ]
]

我试过这样但没有运气。

const result = source.reduce((accumulator, item) => {
    if (accumulator && accumulator.length) {
      const found = accumulator.find(group => {
        return group && group.length
          ? group.find(_transaction =>
              // check the same object 
              return false
            )
          : false;
      });
      if (found) {

        console.log(found);
      }
    } else {
      accumulator.push([item]);
    }

    return accumulator;
  }, []);

Answer 1

创建一个由 name 属性索引的对象，其值是包含 source 项的数组，然后获取对象的值:

const source = [
 {name: 'A', age: 23, id: 0}, 
 {name: 'A', age: 23, id: 1},
 {name: 'B', age: 15, id: 34}, 
 {name: 'B', age: 15, id: 45},
 {name: 'B', age: 15, id: 32},
 {name: 'C', age: 15, id: 32},
];
const sourceItemsByName = {};
for (const obj of source) {
  if (!sourceItemsByName[obj.name]) {
    sourceItemsByName[obj.name] = [];
  }
  sourceItemsByName[obj.name].push(obj);
}
const output = Object.values(sourceItemsByName);
console.log(output);