数据按key分组

后端返回的数据需要跟key值的不同来分组 代码：

let data = [
          { key: 'xxx', name: 'yiyi', age: 12, money: 10 },
          { key: 'sss', name: 'iii', age: 13, money: 100 },
          { key: 'ddd', name: 'ooo', age: 13, money: 50 },
          { key: 'sss', name: 'mmm', age: 50, money: 90 },
          { key: 'ddd', name: '888', age: 13, money: 88 },
          { key: 'aaa', name: 'qqq', age: 30, money: 78 },
          { key: 'aaa', name: 'qqq', age: 13, money: 32 },
          { key: 'xxx', name: 'heh', age: 13, money: 95 },
          { key: 'sss', name: 'rtt', age: 15, money: 456 },
          { key: 'xxx', name: 'opp', age: 15, money: 91 },
          { key: 'ddd', name: 'gun', age: 19, money: 66 },
        ];

      //data是要被分组的数据[]，key是分组依据的关键字
        let getGroup=(data,key)=>{
          let groups={};
          data.forEach(c=>{
            let value=c[key];
            groups[value]=groups[value]||[];
            groups[value].push(c);
          });
          return groups;
        }
        console.log(getGroup(data,'key'))