从具有数组值的对象中动态创建对象数组

Question

目前我有以下对象结构，

`let selectedOptions={"颜色"：{"id"："2"，"值"：[{"value"："红色"，"标签"："红色"，"id"：1}，{"value"："blue"，"标签"："蓝色"，"id"：2}]}，"大小"：{"id"："19"，"值"：[{"值"："中等"，"label"："Medium"，"id"：2}]}，"演示"：{"id"："19"，"值"：[{"value"："neylon"，"标签"："耐纶"，"id"：2}]}。。。N}`

并且想要从上面的对象创建对象数组，如下所示，

[
{ color: "red", size: "medium", demo: "neylon" },
{ color: "blue", size: "medium", demo: "neylon" }
]

我试过下面的方法，但没有成功https://jsfiddle.net/6Lvb12e5/18/

let cArr = [];
for(key in selectedOptions) {
selectedOptions[key].values.forEach(function(val,i) {
cArr.push({ [key]: val.value  })
})
}

感谢

Answer 1

您可以获取所需的部分，如color、size和demo，并根据给定的数据构建笛卡尔乘积。

const
cartesian = (a, b) => a.reduce((r, v) => r.concat(b.map(w => [].concat(v, w))), []),
options = { color: { id: "2", values: [{ value: "red", label: "Red", id: 1 }, { value: "blue", label: "Blue", id: 2 }] }, size: { id: "19", values: [{ value: "small", label: "Small", id: 1 }, { value: "medium", label: "Medium", id: 2 }] }, demo: { id: "19", values: [{ value: "neylon", label: "Neylon", id: 2 }] } },
parts = Object
.entries(options)
.map(([k, { values }]) => [k, values.map(({ value }) => value)]),
keys = parts.map(([key]) => key),
result = parts
.map(([, values]) => values)
.reduce(cartesian)
.map(a => Object.assign(...a.map((v, i) => ({ [keys[i]]: v }))));
console.log(result);

.as-console-wrapper { max-height: 100% !important; top: 0; }

Answer 2

我不确定这是最好的方法吗，甚至数据也不见了，但作为评论，它发布起来相当大，但可以尝试：

let selectedOptions = {
"color": {
"id": "2",
"values": [
{
"value": "red",
"label": "Red",
"id": 1
},
{
"value": "blue",
"label": "Blue",
"id": 2
}
]
},
"size": {
"id": "19",
"values": [
{
"value": "medium",
"label": "Medium",
"id": 2
}
]
},
"demo": {
"id": "19",
"values": [
{
"value": "neylon",
"label": "Neylon",
"id": 2
}
]
}
}; 
let cArr = [];
var obj = {};
var glob;
for(key in selectedOptions) {
selectedOptions[key].values.forEach(function(val,i) {
obj[key] = val.value;
}
)
glob = obj;
}
cArr.push(glob);
console.log(cArr)