我想根据值从单个 JSON 创建两个 JSON。以下是主要的 JSON 结构。
x = [
{id:"1",hobby:"videogames"},
{id:"1",hobby:"chess"},
{id:"2",hobby:"chess"},
{id:"3",hobby:"carrom"},
{id:"4",hobby:"videogames"},
{id:"4","hobby:"carrom"}
]
我想根据 ID 和 Hobby 创建两个 JSON。这样每个唯一的 ID 都会有一个包含其各自爱好的数组,并且每个独特的爱好都会有一个包含其各自提供者的数组
ID =[
{
1: [
{hobby:"videogames"},
{hobby:"chess"}
]
},
{
2: [
{hobby:"chess"}
]
},
{
3: [
{hobby:"carrom"}
]
},
{
4: [
{hobby:"videogames"},
{hobby:"carrom"}
]
}
];
Hobby= [
{
videogames:[
{id:"1"},
{id:"4"}
]
},
{
chess:[
{id:"2"}
]
},
{
carrom:[
{id:"3"},
{id:"4"}
]
}
]
最佳答案
您需要申请array.reduce
函数构建字典,其中 ids
或 hobbies
是键,然后运行 array.map
将此类字典转换为多个数组条目:
let x = [
{id:"1",hobby:"videogames"},
{id:"1",hobby:"chess"},
{id:"2",hobby:"chess"},
{id:"3",hobby:"carrom"},
{id:"4",hobby:"videogames"},
{id:"4",hobby:"carrom"}
];
let grouped = x.reduce((acc, cur) => {
let {id, ...rest} = cur;
if(!acc[id]){
acc[id] = [];
}
acc[id].push(rest);
return acc;
}, {});
let result = Object.entries(grouped).map(([key, value]) => ({[key]: value}))
console.log(result);
关于javascript - 根据 Typescript 中的值对所有 JSON 键进行分组,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/62917316/