js 对象转换为对象数组?

作者站长头像
站长
· 阅读数 10

原始数据：

const obj = {
  "a":[
    "a1","a2"
  ],
 "b":[
    "b1","b2","b3" // 数组内个数不定
  ],
 //......
}

目标数据：

const list = [
  {
    id: 1,
    name: 'a', 
    childList:[
      {id: 3, name: 'a1'},
      {id: 4, name: 'a2'},
    ]
  },
  {
    id: 2,
    name: 'b',
    childList:[
      {id: 5, name: 'b1'},
      {id: 6, name: 'b2'},
      {id: 7, name: 'b2'},
    ]
  }
]
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1个回答
avatar
test
2024-07-15
let obj = {
  "a":[
    "a1","a2"
  ],
 "b":[
    "b1","b2","b3" // 数组内个数不定
  ],
 //......
}
let id=1;
Object.entries(obj).reduce((acc,[name, val])=>{
    acc.push({id:id++, name, childList:val.map(name=>({id:id++, name}))});
    return acc;
},[])

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