任何人都可以帮助转换以下父子对象列表:
我有以下对象数组，需要将其转换为父子顺序。对象中的每个“成员”属性内部可能有 1 或 n 个对象。在“Members”数组中，第一个对象是第二个对象的父对象，第二个对象是第三个对象的父对象。
所以在第一个成员中 “Video”是“West”的父级，“West”是“India”的父级，依此类推。
我尝试过逐一循环这些元素，但无法达到预期的结果。
任何有关逻辑或代码的帮助都会非常有帮助。
输入:
[
{
"Members": [
{
"Name": "Videos"
},
{
"Name": "West"
},
{
"Name": "India"
}
]
},
{
"Members": [
{
"Name": "Machinery"
},
{
"Name": "South"
},
{
"Name": "Australia"
}
]
},
{
"Members": [
{
"Name": "Electronics"
},
{
"Name": "Midwest"
},
{
"Name": "Arab"
}
]
},
{
"Members": [
{
"Name": "Machinery"
},
{
"Name": "West"
},
{
"Name": "India"
}
]
},
{
"Members": [
{
"Name": "Electronics"
},
{
"Name": "NorthEast"
},
{
"Name": "Japan"
}
]
},
{
"Members": [
{
"Name": "Videos"
},
{
"Name": "South"
},
{
"Name": "Australia"
}
]
},
{
"Members": [
{
"Name": "Videos"
},
{
"Name": "West"
},
{
"Name": "Japan"
}
]
}
]
预期输出:
[
{
"name": "Videos",
"children": [
{
"name": "West",
"children": [
{
"name": "India",
"children": []
},
{
"name": "Japan",
"children": []
}
]
},
{
"name": "South",
"children": [
{
"name": "Australia",
"children": []
}
]
}
]
},
{
"name": "Machinery",
"children": [
{
"name": "South",
"children": [
{
"name": "Australia",
"children": []
}
]
},
{
"name": "West",
"children": [
{
"name": "India",
"children": []
}
]
}
]
},
{
"name": "Electronics",
"children": [
{
"name": "Midwest",
"children": [
{
"name": "Arab",
"children": []
}
]
},
{
"name": "NorthEast",
"children": [
{
"name": "Japan",
"children": []
}
]
}
]
}
]
```
最佳答案
伙计，这花了太长时间。但它适用于更大的数据集。请注意，切勿使用此数据结构。曾经。这太糟糕了。为了这个解决方案，我失去了很多脑细胞:
var arr = [
{Members: [{ Name: "Videos" }, { Name: "West" }, { Name: "India" }, {Name: 'Testing'}]},
{Members: [{ Name: "Machinery" }, { Name: "South" }, { Name: "Australia" }]},
{Members: [{ Name: "Electronics" }, { Name: "Midwest" }, { Name: "Arab" }]},
{Members: [{ Name: "Machinery" }, { Name: "West" }, { Name: "India" }]},
{Members: [{ Name: "Electronics" }, { Name: "NorthEast" }, { Name: "Japan" }]},
{Members: [{ Name: "Videos" }, { Name: "South" }, { Name: "Australia" }]},
{Members: [{ Name: "Videos" }, { Name: "West" }, { Name: "Japan" }]}
];
const addRelation = (obj, m, i) => ({...obj, parent: i === 0 ? null : m.slice(0, i).map(el => el.Name).join('.'), level: i, children: []})
const arrayToTree = (arr) => {
arr = arr.map(({ Members: m }) => m.map((obj, i) => addRelation(obj, m, i))).reduce((acc, arr) => {
arr.map(obj => acc.push(obj))
return acc
}, []).sort((a, b) => b.level - a.level)
var temp = [...arr].filter((o, index, self) =>
index === self.findIndex((t) => (
t.Name === o.Name && t.parent === o.parent
))
)
arr.forEach(() => {
if (temp[0].level === 0) return
var parentIndex = temp.findIndex(o => {
var str = temp[0].parent
var rest = str.substring(0, str.lastIndexOf("."));
var last = str.substring(str.lastIndexOf(".") + 1, str.length);
var parents = [rest, last]
return parents[0] !== ''
? o.Name === parents[1] && o.parent === parents[0]
: o.Name === temp[0].parent
})
const { Name, children } = temp[0]
temp[parentIndex].children.push({Name, children})
temp.shift()
})
return temp.map(({ Name, children }) => ({ Name, children }))
}
arr = arrayToTree(arr)
console.log(arr)关于javascript 转换为父子数组，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56646544/