javascript - JS 中对象数组按两个值排序

Question

我有以下对象数组

var parameter = "B001";
var my_array = [
                 {
                  "Shippment_out" : "2020-05-10",
                  "Batch" : "B001",
                  "Truck_No" : "ZB001"
                 },
                 {
                  "Shippment_out" : "2020-05-10",
                  "Batch" : "B002",
                  "Truck_No" : "ZB001"
                 },
                 {
                  "Shippment_out" : "2020-05-11",
                  "Batch" : "B001",
                  "Truck_No" : "ZB002"
                 },
                 {
                  "Shippment_out" : "2020-05-11",
                  "Batch" : "B002",
                  "Truck_No" : "ZB002"
                 },
               ]

我计划按参数排序，如果我将批处理号传递为 B001，则数组应先按 B001 排序，然后按 B002 排序，再加上较早的日期。在本例中为“2020-05-10”。

同样，如果我通过“B002”，然后“B002”，然后“B001”。再次提前约会。

我尝试了 my_array.sort(function (a, b) {}) 但无法实现逻辑。

Answer 1

在 sort 方法中，检查 a.Batch 和 b.Batch 值。
如果两个值与所需批处理相同，则根据装运进行排序。
如果其中一个值与批处理相同，则相应返回。

var my_array = [
  {
    Shippment_out: "2020-05-10",
    Batch: "B001",
    Truck_No: "ZB001"
  },
  {
    Shippment_out: "2020-05-10",
    Batch: "B002",
    Truck_No: "ZB001"
  },
  {
    Shippment_out: "2020-05-11",
    Batch: "B001",
    Truck_No: "ZB002"
  },
  {
    Shippment_out: "2020-05-11",
    Batch: "B002",
    Truck_No: "ZB002"
  }
];

const sortArray = (arr, batch) => {
  return arr.sort((a, b) => {
    if (a.Batch === batch && b.Batch === batch) {
      return new Date(a.Shippment_out) - new Date(b.Shippment_out);
    } else if (a.Batch === batch) {
      return -1;
    } else if (b.Batch === batch) {
      return 1;
    } else {
      return 0;
    }
  });
};

console.log('B001', sortArray(my_array, "B001"));
console.log('B002', sortArray(my_array, "B002"));