Javascript从该数组中附加对象并创建附加了对象键值对的新数组

Question

我有一个像

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我试图在 excel 表中显示这些数据，但是 excel 表是这样的。

此数组的问题在于具有非空值的属性不会以相同的频率出现。 例如，我的Color Family属性出现了 11 次，然后假设Drop出现了 2 次。 我试图为此找到一个解决方案，即找到出现最多非空值的键，然后将其他对象的其他属性连接到它，但没有成功。

我想要的输出

[
    {
        "ColorFamily": "BEIGE",
        "Dark/Light Main Color": "Dark",
        "Drop": "DEL1",
        "Embroidery Family": "SATIN STITCH",
        "FabricFamily": "COTTON"
    },
    {
        "ColorFamily": "BLACK",
        "Dark/Light Main Color": "LIGHT",
        "Drop": "DEL2",
        "Embroidery Family": "null",
        "FabricFamily": "COTTON SILK"
    },
    ...
]

任何帮助，将不胜感激。

Answer 1

您需要更改basic_format和input_data ，您将使用下面给出的代码获得所需的输出。

注意：这只是我为小型可重复输入和输出而运行的代码。 您可以更改数据并进行操作以获得所需的最终输出

function fixMapping(basic_format = {}, input_data = []) {
    // in here we are just creating a map of all the value we have and we will be using index to match the value for different keys
    data_key_mapping = {}
    input_data.map(d => {
        Object.entries(d).map(([key, value]) => {
            if (!data_key_mapping[key]) data_key_mapping[key] = []
            if (value) data_key_mapping[key].push(value)
        })
    })
    
    // using the above mapping to finally outputting the desired output while using index to match the value in different keys and keeping other keys as null
    final_data = []
    Object.entries(data_key_mapping).map(([key, values]) => {
        values.map((value, index) => {
            if (!final_data[index]) final_data[index] = Object.assign({}, basic_format)
            final_data[index][key] = value || null
        })
    })

    return final_data;
}


basic_format = { "Color Family": null, "Drop": null }
input_data = [ { "Color Family": "BEIGE", "Drop": null }, { "Color Family": "BLACK", "Drop": null }, { "Drop": "DEL 1", "Color Family": null } ]

console.log(fixMapping(basic_format, input_data));

上面的代码会输出

[
  {
    "Color Family": "BEIGE",
    "Drop": "DEL 1"
  },
  {
    "Color Family": "BLACK",
    "Drop": null
  }
]

更新1：（需要basic_format变量）

我们对所有的键没有相同的频率，这将导致最终对象中键的计数不一致，因此我们将使用我们想要的所有键启动每个对象，并且null数据将被实际值覆盖（如果存在） .

所以基本上，这个变量用于为我们的最终对象提供一致的结构。

如果我们不使用basic_format ，像这样

    if (!final_data[index]) final_data[index] = {}
    final_data[index][key] = value || null

它会产生输出（注意第二个对象中缺少的键Drop ）

[ { "Color Family": "BEIGE", "Drop": "DEL 1" }, { "Color Family": "BLACK" } ]