JS 数组相同的key 进行合并

const data = [ { age: 1, name: 'zzz' }, { age: 2, name: 'ccc' }, { age: 1, name: 'bbb' }, { age: 3, name: 'aa' } ];

age相同的变成以下数据 data = [ { age: 1, name: 'zzz', names:['zzz','bbb'] }, { age: 2, name: 'ccc',names:[] }, { age: 3, name: 'aa',names:[] } ];

const grouped = data.reduce((acc, item) => {

          if (!acc[item.age]) {

              acc[item.age] = {

                age: item.age,

                name: item.name,

                names: [item.name]

              };

          } else {

            acc[item.age].names.push(item.name);

          }

          return acc;

        }, {});

        const result = Object.values(grouped);

          console.log(result,'---------结果');