如何循環遍歷 Javascript 對象數組，將對象指定為其中其他對象的子對象？ 樹/層次結構
[英]How can I loop through a Javascript object array assigning objects as children of other objects within? Tree/hierarchical structure
問題描述
我需要幫助遍歷以下對象數組以將所有內容重新組織為層次結構/樹。 我如何實現這一目標？ 任何幫助表示贊賞。
[
{
"id":1,
"parentId":null,
"value":"Root Parent 01",
"children":[]
},
{
"id":8,
"parentId":null,
"value":"Root Parent 02",
"children":[]
},
{
"id":36,
"parentId":15,
"value":"Child 01",
"children":[]
},
{
"id":43,
"parentId":15,
"value":"Child 02",
"children":[]
},
{
"id":50,
"parentId":15,
"value":"Child 03",
"children":[]
},
{
"id":15,
"parentId":null,
"value":"Root Parent 03",
"children":[]
},
{
"id":57,
"parentId":22,
"value":"Child 04",
"children":[]
},
{
"id":64,
"parentId":22,
"value":"Child 05",
"children":[]
},
{
"id":71,
"parentId":22,
"value":"Child 06",
"children":[]
},
{
"id":78,
"parentId":22,
"value":"Child 07",
"children":[]
},
{
"id":85,
"parentId":22,
"value":"Child 08",
"children":[]
},
{
"id":92,
"parentId":22,
"value":"Child 09",
"children":[]
},
{
"id":99,
"parentId":22,
"value":"Child 10",
"children":[]
},
{
"id":106,
"parentId":22,
"value":"Child 11",
"children":[]
},
{
"id":22,
"parentId":null,
"value":"Root Parent 04",
"children":[]
},
{
"id":113,
"parentId":29,
"value":"Child 12",
"children":[]
},
{
"id":115,
"parentId":29,
"value":"Child 13",
"children":[]
},
{
"id":122,
"parentId":29,
"value":"Child 14",
"children":[]
},
{
"id":129,
"parentId":29,
"value":"Child 15",
"children":[]
},
{
"id":136,
"parentId":29,
"value":"Child 16",
"children":[]
},
{
"id":143,
"parentId":29,
"value":"Child 17",
"children":[]
},
{
"id":157,
"parentId":150,
"value":"Child 18",
"children":[]
},
{
"id":150,
"parentId":29,
"value":"Child 19",
"children":[]
},
{
"id":29,
"parentId":null,
"value":"Root Parent 05",
"children":[]
}
]
所需的對象數組：
[
{
"id":1,
"parentId":null,
"value":"Root Parent 01",
"children":[]
},
{
"id":8,
"parentId":null,
"value":"Root Parent 02",
"children":[]
},
{
"id":15,
"parentId":null,
"value":"Root Parent 03",
"children":[
{
"id":36,
"parentId":15,
"value":"Child 01",
"children":[]
},
{
"id":43,
"parentId":15,
"value":"Child 02",
"children":[]
},
{
"id":50,
"parentId":15,
"value":"Child 03",
"children":[]
}
]
},
{
"id":22,
"parentId":null,
"value":"Root Parent 04",
"children":[
{
"id":57,
"parentId":22,
"value":"Child 04",
"children":[]
},
{
"id":64,
"parentId":22,
"value":"Child 05",
"children":[]
},
{
"id":71,
"parentId":22,
"value":"Child 06",
"children":[]
},
{
"id":78,
"parentId":22,
"value":"Child 07",
"children":[]
},
{
"id":85,
"parentId":22,
"value":"Child 08",
"children":[]
},
{
"id":92,
"parentId":22,
"value":"Child 09",
"children":[]
},
{
"id":99,
"parentId":22,
"value":"Child 10",
"children":[]
},
{
"id":106,
"parentId":22,
"value":"Child 11",
"children":[]
}
]
},
{
"id":29,
"parentId":null,
"value":"Root Parent 05",
"children":[
{
"id":113,
"parentId":29,
"value":"Child 12",
"children":[]
},
{
"id":115,
"parentId":29,
"value":"Child 13",
"children":[]
},
{
"id":122,
"parentId":29,
"value":"Child 14",
"children":[]
},
{
"id":129,
"parentId":29,
"value":"Child 15",
"children":[]
},
{
"id":136,
"parentId":29,
"value":"Child 16",
"children":[]
},
{
"id":143,
"parentId":29,
"value":"Child 17",
"children":[]
},
{
"id":150,
"parentId":29,
"value":"Child 19",
"children":[
{
"id":157,
"parentId":150,
"value":"Child 18",
"children":[]
}
]
}
]
}
]
所需樹：
根父級 01
根父級 02
根父級 03
---孩子01
---孩子02
---孩子03
根父級 04
---孩子04
---孩子05
---孩子06
---孩子07
---孩子08
---孩子09
---孩子10
---孩子11
根父級 05
---孩子12
---孩子13
---孩子14
---孩子15
---孩子16
---孩子17
---孩子19
------18歲的孩子
1 個解決方案
解決方案1
1 2018-02-22 22:25:16
雖然我是嘗試自己嘗試的超級粉絲。 我也一直想知道如何做到這一點，並認為這對我來說也是一個很好的機會。
首先，我對輸入列表進行排序，以查找確定為子元素而不是父元素的項目。
然后在第二個循環中，我們查找孩子所屬的父級，並將它們進行匹配。 您可能需要根據您的數據優化此過程。 您可能還需要多次循環，但這應該足以讓您有所收獲。
var inputArray = [{ "id": 1, "parentId": null, "value": "Root Parent 01", "children": [] }, { "id": 8, "parentId": null, "value": "Root Parent 02", "children": [] }, { "id": 36, "parentId": 15, "value": "Child 01", "children": [] }, { "id": 43, "parentId": 15, "value": "Child 02", "children": [] }, { "id": 50, "parentId": 15, "value": "Child 03", "children": [] }, { "id": 15, "parentId": null, "value": "Root Parent 03", "children": [] }, { "id": 57, "parentId": 22, "value": "Child 04", "children": [] }, { "id": 64, "parentId": 22, "value": "Child 05", "children": [] }, { "id": 71, "parentId": 22, "value": "Child 06", "children": [] }, { "id": 78, "parentId": 22, "value": "Child 07", "children": [] }, { "id": 85, "parentId": 22, "value": "Child 08", "children": [] }, { "id": 92, "parentId": 22, "value": "Child 09", "children": [] }, { "id": 99, "parentId": 22, "value": "Child 10", "children": [] }, { "id": 106, "parentId": 22, "value": "Child 11", "children": [] }, { "id": 22, "parentId": null, "value": "Root Parent 04", "children": [] }, { "id": 113, "parentId": 29, "value": "Child 12", "children": [] }, { "id": 115, "parentId": 29, "value": "Child 13", "children": [] }, { "id": 122, "parentId": 29, "value": "Child 14", "children": [] }, { "id": 129, "parentId": 29, "value": "Child 15", "children": [] }, { "id": 136, "parentId": 29, "value": "Child 16", "children": [] }, { "id": 143, "parentId": 29, "value": "Child 17", "children": [] }, { "id": 157, "parentId": 150, "value": "Child 18", "children": [] }, { "id": 150, "parentId": 29, "value": "Child 19", "children": [] }, { "id": 29, "parentId": null, "value": "Root Parent 05", "children": [] } ] function DataRollUp(input) { var hasParent = []; var output = [] for (i of input) { if (i.parentId) { hasParent.push(i); } else { output.push(i); } } for (i of hasParent) { var parent = output.find(record => record.id == i.parentId) if (parent) { parent.children.push(i); } } console.log(output); return output; } DataRollUp(inputArray)
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