javascript - 将对象从数组A移到数组B。Ramda.js(Move object from array A to array B. Ramda.js)

Question

It's pretty simple to move item in array via move , but unfortunately it's not suitable in my case as usual.

(通过move在数组中移动项目非常简单，但是不幸的是，它不适用于我以往的情况。)

For example I need to move object with index 0 from group #31 to #33 and set the new index for object in the destination array to 1.

(例如，我需要将索引为0的对象从组＃31移动到＃33，并将目标数组中对象的新索引设置为1。)

• source_group_id = 31

  (source_group_id = 31)

• source_object_index = 0

  (source_object_index = 0)

• destination_group_id = 33

  (destination_group_id = 33)

• destination_object_index = 1

  (destination_object_index = 1)

Data object model:

(数据对象模型：)

const stuff = {
  "31": [
    {------------------------------|
      "id": "11",                  |============|
      "title": "Just move me pls"  |           ||
    },-----------------------------|           ||
    {                                          ||
      "id": "12",                              ||
      "title": "Ramda 123"                     ||
    },                                         ||
  ],                                           ||
  "33": [                                      ||
    {                                          ||
      "id": "3",                               ||
      "title": "Ramda jedi"                    ||
    }                                          ||
     ?==========================================|
  ],   
  "4321": [
    {
      "id": "1",
      "title": "Hello Ramda"
    }
  ]
}

Does anyone know how to solve this?

(有谁知道如何解决这个问题？)

  ask by Arthur translate from so

Answer 1

In plain Javascript, Array#splice works well.

(在纯Javascript中， Array#splice效果很好。)

 const stuff = { 31: [{ id: "11", title: "just move me pls" }, { id: "12", title: "ramda 123" }], 33: [{ id: "3", title: "..." }], 4321: [{ id: "1", title: "hello Ramda" }] }; stuff['33'].splice(1, 0, ...stuff['31'].splice(0, 1)); console.log(stuff); 

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