How do I push the array object into another? [duplicate]

Question

I want to match id and parentId and get the new object

element can take more than one data and must be nested according to id matching

I couldn't find how to match and can I search the new list after converting?

is it possible to do such a dynamic function?

I will use this code in an angular project

First Array

[
  {
    id: '1',
    parentId: 0,
    name: 'x'
  },
  {
    id: '2',
    parentId: 1,
    name: 'y'
  },
  {
    id: '3',
    parentId: 2,
    name: 'z'
  },
  {
    id: '4',
    parentId: 2,
    name: 'q'
  },
  {
    id: '5',
    parentId: 3,
    name: 'e'
  },
  {
    id: '6',
    parentId: 5,
    name: 'r'
  }
]

new object

{
  element: [
    {
      data: {
        id: '1',
        parentId: 0,
        name: 'x'
      },
      element: [
        {
          data: {
            id: '2',
            parentId: 1,
            name: 'y'
          },
          element: [
            {
              data: {
                id: '3',
                parentId: 2,
                name: 'z'
              },
              element: [
                {
                  data: {
                    id: '5',
                    parentId: 3,
                    name: 'e'
                  },
                  element: [
                    {
                      data: {
                        id: '6',
                        parentId: 5,
                        name: 'r'
                      },
                      element: [

                      ]
                    }
                  ]
                }
              ]
            },
            {
              data: {
                id: '4',
                parentId: 2,
                name: 'q'
              },
              element: [

              ]
            }
          ]
        }
      ]
    }
  ]
}

I think this is what you want. stackoverflow.com/questions/19222113/… — Shehan Ekanayake
– Shehan Ekanayake, Commented May 9, 2020 at 21:28
you can use lodash to achieve this. Sorry for bad formatting. The question was closed. Couldn't post as an answer function transformToTree(arr){ var nodes = {}; return arr.filter(function(obj){ var id = obj["id"], parentId = obj["parentId"]; nodes[id] = _.defaults(obj, nodes[id], { element: [] }); parentId && (nodes[parentId] = (nodes[parentId] || { element: [] }))["element"].push(obj); return !parentId; }); } — Shehan Ekanayake
– Shehan Ekanayake, Commented May 9, 2020 at 22:11

radarbob · Accepted Answer · 2020-05-09 19:59:30Z

1

In the MSN Javascript documentation look up Array.find(). Basically, pass a simple expression for the search.

answered May 9, 2020 at 19:59

radarbob

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