如何在React-Native中转换此对象？

Question

我有一个像这样的对象

{ -L1Rm6VbfLLyFJ3Qi6K: {city: "Tokyo", date: "26-08-2004" } }

我想像这样转换这个对象：

{ id:"-L1Rm6VbfLLyFJ3Qi6K", city: "Tokyo", date: "26-08-2004" }

我怎样才能做到这一点？谢谢...

Answer 1

您可以以所需的格式获取Object.entries和map。

let obj = { '-L1Rm6VbfLLyFJ3Qi6K': {city: "Tokyo", date: "26-08-2004" } }

let op = Object.entries(obj).map(([key,value]) => ({
  id: key,
  ...value,
}))

console.log(op)

Answer 2

如果只有一个对象/索引，则可以通过这种方式访问​​。

let obj = { '-L1Rm6VbfLLyFJ3Qi6K': {city: "Tokyo", date: "26-08-2004" } }

let op = Object.entries(obj).map(([key,value]) => ({
  id: key,
  ...value,
}))

console.log(op[0])

Answer 3

如果对象将成为一个键值，那么使用它，否则，就像@Code Maniac建议的那样，你应该使用map或forEach

const obj = { '-L1Rm6VbfLLyFJ3Qi6K': {city: "Tokyo", date: "26-08-2004" } }

const newobj = {
   id: Object.keys(obj)[0],
   ...obj[Object.keys(obj)]
}

console.log(newobj)

Answer 4

也许你看起来像这样？

const obj1 = { "-L1Rm6VbfLLyFJ3Qi6K": {city: "Tokyo", date: "26-08-2004" } }

const obj2 = {}

for (const id in obj1) {
  Object.assign(obj2, { id, ...obj1[id] })
}

console.log(obj2);

或者用这种方式重用旧对象？

const obj1 = { "-L1Rm6VbfLLyFJ3Qi6K": {city: "Tokyo", date: "26-08-2004" } }

for (const id in obj1) {
   Object.assign(obj1, { id, ...obj1[id] })
   delete obj1[id];
}

console.log(obj1);