如何内部嵌套对象扩展为多个对象

Question

在Node.js的，我要转换为嵌套对象延伸到一个数组，细节follwing：

{ 
"topic":"myTopic", 
"content":{ 
    "name": { 
     "tom1" : { 
      "value": "String", 
     }, 
     "tom2" : { 
      "value": "String", 
     }, 
     "tom3" : { 
      "value": "String", 
     } 
    } 
} 
} 

转换并延伸到下面的格式

[{ 
"topic":"myTopic", 
"content":{ 
    "name": { 
     "tom1" : { 
      "value": "String", 
     } 
    } 
} 
}, 

{ 
"topic":"myTopic", 
"content":{ 
    "name": {   
     "tom2" : { 
      "value": "String", 
     } 
    } 
} 
}, 
{ 
"topic":"myTopic", 
"content":{ 
    "name": {   
     "tom3" : { 
      "value": "String", 
     } 
    } 
} 
}] 

Answer 1

你可以尝试这样的：

var result = []; // contains the array you're looking for 
var test = { "topic":"myTopic", "content":{ "name": { "tom1" : { "value": "String", }, "tom2" : { "value": "String", }, "tom3" : { "value": "String", } } } }; 
Object.keys(test.content.name).map((e,i) => { 
    let temp = {}; 
    temp[e] = test.content.name[e]; 
    result.push({topic: test.topic, content: { name: temp }}); 
}); 

这是否帮助你吗？

Answer 2

x = { "topic":"myTopic", "content":{ "name": { "tom1" : { "value": "String", }, "tom2" : { "value": "String", }, "tom3" : { "value": "String", } } } }; 
 

 
console.log(Object.keys(x.content.name).map((n) => { 
 
let y = JSON.parse(JSON.stringify(x)); 
 
y.content.name = {}; 
 
y.content.name[n] = x.content.name[n]; 
 
return y; 
 
}))

Answer 3

您可以使用map和一些Object方法：

function splitObject(obj) { 
 
    return Object.keys(obj.content.name).map(key => Object.assign({}, { 
 
     content: { name: { [key]: obj.content.name[key] } } 
 
    })); 
 
} 
 

 
const obj = { 
 
    topic: "myTopic", 
 
    content: { 
 
     name: { 
 
      tom1: { 
 
       value: "String", 
 
      }, 
 
      tom2: { 
 
       value: "String", 
 
      }, 
 
      tom3: { 
 
       value: "String", 
 
      } 
 
     } 
 
    } 
 
}; 
 

 
const result = splitObject(obj); 
 

 
console.log(result);

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