javascript - 根据键过滤对象数组的子集

Question

我有以下对象数组。现在我需要根据键值过滤并创建 3 个单独的对象数组。

"data": [
{
  "BaseId": 1,
  "BaseDesc": "18 BHC Baseline",
  "StressId": 5,
  "StressDesc": "Desc 1",
  "bopId": 8,
  "bopDesc": "BOP Desc 1",
},
{
  "BaseId": 1,
  "BaseDesc": "Baseline 2",
  "StressId": 2,
  "StressDesc": "Desc 12",
  "bopId": 8,
  "bopDesc": "BOP Desc 2"
},
{
  "BaseId": 2,
  "BaseDesc": "Baseline 3",
  "StressId": 7,
  "StressDesc": "Desc 3",
  "bopId": 10,
  "bopDesc": "BOP Desc 3"
}

]

现在我需要过滤它并创建 3 个单独的对象数组，以便:

1. BaseData Array Obj


"baseData": [
{
  "BaseId": 1,
  "BaseDesc": "18 BHC Baseline"
},
{
  "BaseId": 1,
  "BaseDesc": "Baseline 2"
},
{
  "BaseId": 2,
      "BaseDesc": "Baseline 3"
    }
  ]

应力数组对象:

    "data": [
    {
      "StressId": 5,
      "StressDesc": "Desc 1"
    },
    {
      "StressId": 2,
      "StressDesc": "Desc 12"
    },
    {
      "StressId": 7,
      "StressDesc": "Desc 3"
    }
  ]

类似地，bop 数据的第三个对象。因此，如果我的实际数组的键中包含“base*”，那么我需要过滤并添加到 bop 数组，并且其他两个对象数组也采用相同的逻辑。

有人可以指导我如何实现这一目标吗？

Answer 1

怎么样:

const data = [
  {
    BaseId: 1,
    BaseDesc: "18 BHC Baseline",
    StressId: 5,
    StressDesc: "Desc 1",
    bopId: 8,
    bopDesc: "BOP Desc 1"
  },
  {
    BaseId: 1,
    BaseDesc: "Baseline 2",
    StressId: 2,
    StressDesc: "Desc 12",
    bopId: 8,
    bopDesc: "BOP Desc 2"
  },
  {
    BaseId: 2,
    BaseDesc: "Baseline 3",
    StressId: 7,
    StressDesc: "Desc 3",
    bopId: 10,
    bopDesc: "BOP Desc 3"
  }
];

const pickSpecifiedProperties = (startingPropString, arrayOfObjects) =>
  arrayOfObjects.map(obj => {
    const targetKeys = Object.keys(obj).filter(
      keyName =>
        keyName.toLowerCase().indexOf(startingPropString.toLowerCase()) === 0
    );
    return targetKeys.reduce((data, keyName) => {
      const newProperty = { [keyName]: obj[keyName] };
      return { ...data, ...newProperty };
    }, {});
  });

const baseData = pickSpecifiedProperties("Base", data);
const stressData = pickSpecifiedProperties("Stress", data);
const bopData = pickSpecifiedProperties("bop", data);

console.log({ baseData, stressData, bopData });