javascript 对已按id分组的对象数组进行分组

gev0vcfq 于 2023-04-04 发布在 Java

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我有下面的JSON响应，它是作为远程对象下的ID组返回的。
然而，要在UI上显示，我需要根据名称分组后显示数据。有人可以建议我如何根据已经由后端API分组的数据的名称对数据进行分组吗？
有人能帮忙吗。
电流响应：

{
    "remote": {
      "12345": [
        {
          "id": "642232324873ab98",
          "name": "Akon",
          "account_id": "12345",
          "account_name": "director"
        }
      ],
      "56780": [
        {
          "id": "6434343a1873ab98",
          "name": "Jim",
          "account_id": "56780",
          "account_name": "director"
          
        }
      ],
      "others": [
        {
          "id": "6421ca1873ab980001bd465a",
          "account_id": null
          "account_name": "others"

        }
      ]
    }

远程对象的预期输出：

"remote": {
      "director": [
        {
          "id": "6420691873ab98",
          "name": "Akon",
          "account_id": "12345",
          "account_name": "director"
        },
        {
          "id": "622121873ab98",
          "name": "Jim",
          "account_id": "56780",
          "account_name": "director"
          
        }
      ],
      "others": [
        {
          "id": "6421ca1873ab980001bd465a",
          "account_id": null,
          "account_name": "others"

        }
      ]
    }
    ```

JavaScript

来源：https://stackoverflow.com/questions/75920756/grouping-the-array-of-object-which-was-already-grouped-by-id

1条答案

按热度按时间

dwbf0jvd1#

这是一个非常简单的聚合，代码希望是相当自我解释的。它获取remote下的所有条目，并尝试将它们聚合到一个新数组中，该数组由account_name或字符串“other”（如果不存在）分组。

const input = {"id":"43940djkd334","topic":"local topic","start_time":"2023-03-27T16:01:16.000+00:00","duration":2223,"state":"fetched","user":{"local":[{"id":"6421ca1873ab980001bd4658","name":"Freddy","email":"freddy@testmail.io","title":null,"account_id":"62323jkds0203nsk","account_name":"testmail.io"}],"remote":{"12345":[{"id":"642232324873ab98","name":"Akon","account_id":"12345","account_name":"director"}],"56780":[{"id":"6434343a1873ab98","name":"Jim","account_id":"56780","account_name":"director"}],"others":[{"id":"6421ca1873ab980001bd465a","account_id":null}]}}};

const output = Object.entries(input.user.remote).reduce( (acc,[_,[item]]) => {
  acc[item.account_name ?? "others"] ??= [];
  acc[item.account_name ?? "others"].push(item);
  return acc;
},{})

console.log(output);

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javascript 对已按id分组的对象数组进行分组

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