Dissoc对象Ramda

Question

需要Ramda社区的帮助...我有一个对象数组，需要按“ chapter_id”进行排序，排序后，只需删除“ chapter_id”即可：]]

const stuff = [
  { id: 1, title: "hello world", chapter_id: "4321" },
  { id: 2, title: "new title", chapter_id: "21" },
  { id: 3, title: "...", chapter_id: "33" },
  { id: 4, title: "huh!?", chapter_id: "14" },
  { id: 5, title: "From Earth", chapter_id: "11" },
  { id: 6, title: "alien", chapter_id: "11" },
  { id: 7, title: "Saturn", chapter_id: "11" },
  { id: 8, title: "Mars:/", chapter_id: "21" },
  { id: 9, title: "damn", chapter_id: "3" },
  { id: 10, title: "test", chapter_id: "11" },
  { id: 11, title: "ramda heeeelp", chapter_id: "31" },
  { id: 12, title: "hello?", chapter_id: "21" }
]
结果，我想得到这个对象：

{
  "3": [
    {
      "id": "9",
      "title": "damn"
    }
  ],
  "11": [
    {
      "id": "5",
      "title": "From Earth"
    },
    {
      "id": "6",
      "title": "alien"
    },
    {
      "id": "7",
      "title": "Saturn"
    },
    {
      "id": "10",
      "title": "test"
    }
  ],
  "14": [
    {
      "id": "4",
      "title": "huh!?"
    }
  ],
  "21": [
    {
      "id": "2",
      "title": "new title"
    },
    {
      "id": "8",
      "title": "Mars:/"
    },
    {
      "id": "12",
      "title": "hello?"
    }
  ],
  "31": [
    {
      "id": "11",
      "title": "ramda heeeelp"
    }
  ],
  "33": [
    {
      "id": "3",
      "title": "..."
    }
  ],
  "4321": [
    {
      "id": "1",
      "title": "hello world"
    }
  ]
}
我如何为此苦苦挣扎：

let object = {};

map(({ chapter_id }) => {
  const composed = compose(
    map(evolve({ id: toString })), //here id is converted to a string
    filter(c => c.chapter_id === chapter_id),
  );
  object[chapter_id] = composed(stuff)
}, stuff);
我的结果：

{
  "3": [
    {
      "id": "9",
      "title": "damn",
      "chapter_id": "3" //Dissoc this
    }
  ],
  "11": [
    {
      "id": "5",
      "title": "From Earth",
      "chapter_id": "11" //dissoc this
    },
    {
      "id": "6",
      "title": "alien",
      "chapter_id": "11"  //and this
    },
    {
      "id": "7",
      "title": "Saturn",
      "chapter_id": "11" //and this
    },
    {
      "id": "10",
      "title": "test",
      "chapter_id": "11" //and this
    }
  ],
  "14": [
    {
      "id": "4",
      "title": "huh!?",
      "chapter_id": "14" //and this
    }
  ],
  "21": [
    {
      "id": "2",
      "title": "new title",
      "chapter_id": "21" //and this
    },
    {
      "id": "8",
      "title": "Mars:/",
      "chapter_id": "21" //and this
    },
    {
      "id": "12",
      "title": "hello?",
      "chapter_id": "21" //and this
    }
  ],
  "31": [
    {
      "id": "11",
      "title": "ramda heeeelp",
      "chapter_id": "31" //and this!!!!!!
    }
  ],
  "33": [
    {
      "id": "3",
      "title": "...",
      "chapter_id": "33" //and this..
    }
  ],
  "4321": [
    {
      "id": "1",
      "title": "hello world",
      "chapter_id": "4321" //and this:(
    }
  ]
}

它可以工作，但我无法从每个对象中删除“ chapter_id”，有人知道如何解决吗？ ：Δ

需要Ramda社区的帮助...我有一个对象数组，需要按“ chapter_id”进行排序，排序后，只需删除“ chapter_id”即可：const stuff = [{id：1，标题：“ hello world” ，chapter_id：...

Answer 1

首先，没有正确描述有限任务：)您真正想要的（基于我想要得到的结果

Answer 2

使用Ramda，您可以按key分组，然后映射组，并从所有对象中分离key：

Answer 3

正如Ori Drori指出的，这可能是Ramda方法：