[英]Convert nested Array of Objects into Array of Arrays
I have to convert this array of objects into an array of arrays.我必须将此对象数组转换为数组数组。 I just want to get the value from "value" key and remove the value from "id" key.我只想从“value”键中获取值并从“id”键中删除值。
And this is my response data:这是我的响应数据:
[
{
"id": "f2e77e46-814b-4d73-83db-cb57c341d28f",
"value": [
{
"id": "ba50429d-564a-404c-ba48-e70b9a3971d9",
"value": 1
},
{
"id": "d9b49f4a-f184-4dc5-9469-1ad52e23d2dc",
"value": 1
},
{
"id": "e1cf76aa-6516-4ed9-bdf7-c4d0d8f07102",
"value": 1
}
]
},
{
"id": "baacce8d-192c-4353-bef9-9140c611f1d7",
"value": [
{
"id": "b3bf9a68-4abf-43b2-9e3c-2cad0536a7f1",
"value": 1
},
{
"id": "7dbe6bad-1a81-45e1-b683-95a185b53f35",
"value": 1
},
{
"id": "c5282246-cc18-4ffa-bb57-459df6ae28b9",
"value": 1
}
]
},
{
"id": "1e622287-915d-450b-8ed0-53b4a434030f",
"value": [
{
"id": "2c69caf6-9277-4fcd-9d12-0d0823eb2805",
"value": 1
},
{
"id": "9a665798-1318-4662-9a17-abbc6ee77df7",
"value": 1
},
{
"id": "786157e5-45e3-4886-8307-f613ab8fcad0",
"value": 1
}
]
}
]
And this is what i want it from my response data这就是我想要从我的响应数据中得到的
[
[1,1,1],
[1,1,1],
[1,1,1]
]
I've tried using array map function but this is hard for me and always fail to convert it.我试过使用数组映射函数,但这对我来说很难,而且总是无法转换它。
Use Array#map
to extract the value
property of the individual items and use a nested map
to extract the value
property of the value
array:使用Array#map
提取单个项的value
属性,并使用嵌套map
提取value
数组的value
属性:
const data=[{id:"f2e77e46-814b-4d73-83db-cb57c341d28f",value:[{id:"ba50429d-564a-404c-ba48-e70b9a3971d9",value:1},{id:"d9b49f4a-f184-4dc5-9469-1ad52e23d2dc",value:1},{id:"e1cf76aa-6516-4ed9-bdf7-c4d0d8f07102",value:1}]},{id:"baacce8d-192c-4353-bef9-9140c611f1d7",value:[{id:"b3bf9a68-4abf-43b2-9e3c-2cad0536a7f1",value:1},{id:"7dbe6bad-1a81-45e1-b683-95a185b53f35",value:1},{id:"c5282246-cc18-4ffa-bb57-459df6ae28b9",value:1}]},{id:"1e622287-915d-450b-8ed0-53b4a434030f",value:[{id:"2c69caf6-9277-4fcd-9d12-0d0823eb2805",value:1},{id:"9a665798-1318-4662-9a17-abbc6ee77df7",value:1},{id:"786157e5-45e3-4886-8307-f613ab8fcad0",value:1}]}]; const result = data.map(e => e.value.map(f => f.value)); console.log(result);
You have an array of objects that contains a value
array which also contains objects.您有一个对象数组,其中包含一个也包含对象的value
数组。 So you need to map
over the array of objects, and also map
over the value
array in those object to return the value of each value
property.所以,你需要map
对象阵列上,也map
了在value
数组中的对象返回各自的价值value
属性。
const arr=[{id:"f2e77e46-814b-4d73-83db-cb57c341d28f",value:[{id:"ba50429d-564a-404c-ba48-e70b9a3971d9",value:1},{id:"d9b49f4a-f184-4dc5-9469-1ad52e23d2dc",value:1},{id:"e1cf76aa-6516-4ed9-bdf7-c4d0d8f07102",value:1}]},{id:"baacce8d-192c-4353-bef9-9140c611f1d7",value:[{id:"b3bf9a68-4abf-43b2-9e3c-2cad0536a7f1",value:1},{id:"7dbe6bad-1a81-45e1-b683-95a185b53f35",value:1},{id:"c5282246-cc18-4ffa-bb57-459df6ae28b9",value:1}]},{id:"1e622287-915d-450b-8ed0-53b4a434030f",value:[{id:"2c69caf6-9277-4fcd-9d12-0d0823eb2805",value:1},{id:"9a665798-1318-4662-9a17-abbc6ee77df7",value:1},{id:"786157e5-45e3-4886-8307-f613ab8fcad0",value:1}]}]; const out = arr.map(obj => { return obj.value.map(arr => arr.value); }); console.log(out);
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