错误对类型记录中的对象数组进行排序，没有正确的顺序(使用.slice()工作)

Question

我有一个具有以下结构的对象数组：

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let j=[
         {
            id: "924f8812-8520-41ac-b78b-8b8ea69dc169", 
            FechaHoraConexion: "2020-11-19 13:48:15",
            FechaHoraDesconexion: "2020-12-20 13:48:59"
          },
          {
            id: "e9f9d414-eba6-4af9-8a0f-4e2c9d2e4643", 
            FechaHoraConexion: "2020-11-19 13:50:27",
            FechaHoraDesconexion: "2020-11-19 13:48:15"
          },
          {
            id: "dbdbccf3-a820-49e0-93e6-fc392120cdb2",
            FechaHoraConexion: "2020-11-19 19:50:27",
            FechaHoraDesconexion: "2020-11-20 14:17:32"
           }
        ]
        let ascend=j.slice();
        let auxascend=ascend.sort(function (a, b) {
    if (a.FechaHoraConexion > b.FechaHoraConexion) {
      return 1;
    }
    if (a.FechaHoraConexion < b.FechaHoraConexion) {
      return -1;
    }
    return 0;
  });
  let ascend2=j.slice();
  let auxascend2=ascend2.sort(function (a, b) {
    if (a.FechaHoraDesconexion > b.FechaHoraDesconexion) {
      return 1;
    }
    if (a.FechaHoraDesconexion < b.FechaHoraDesconexion) {
      return -1;
    }
    return 0;
  });
 //THE RESULT IS THE SAME ARRAY WITH THE SAME ORDER BUT THE ASCEND ARRAY ORDER IS INCORRECT       
 console.log(auxascend,auxascend2)

​

acend2数组是正确的，但是由于任何原因，提升数组等于ascend2数组。原因是什么？谢谢你的帮助。

Answer 1

您需要获取数组的副本，并在没有相同对象引用的情况下对数组进行排序。

​

const
    sortBy = key => (a, b) => a[key].localeCompare(b[key]),
    array = [{ id: "924f8812-8520-41ac-b78b-8b8ea69dc169", FechaHoraConexion: "2020-11-19 13:48:15", FechaHoraDesconexion: "2020-12-20 13:48:59" }, { id: "e9f9d414-eba6-4af9-8a0f-4e2c9d2e4643", FechaHoraConexion: "2020-11-19 13:50:27", FechaHoraDesconexion: "2020-11-19 13:48:15" }, { id: "dbdbccf3-a820-49e0-93e6-fc392120cdb2", FechaHoraConexion: "2020-11-19 19:50:27", FechaHoraDesconexion: "2020-11-20 14:17:32" }]
    auxascend = [...array].sort(sortBy('FechaHoraConexion'));
    auxascend2 = [...array].sort(sortBy('FechaHoraDesconexion'));
     
console.log(auxascend);
console.log(auxascend2)

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