javascript - 具有计算对象属性名称的嵌套对象解构 - react 状态

Question

我正在尝试 setState 但我不知道如何解构具有动态属性名称的对象的其余部分。在此示例中，id 是我表单中每个输入的动态值。计算状态后，它看起来像这样:

{
    "inputConfig": {
        "5d4d684cadf8750f7077c739": {
            "0": "5d4d684cadf8750f7077c739",
            "isEmpty": true
        },
        "5d4d684cadf8750f7077c73c": {
            "time": "2019-08-10T12:33:42.439Z",
            "units": "f",
            "defaultValue": 6,
            "name": "Temp",
            "isEmpty": true
        }
    }
}

动态 id 持有一个具有输入配置的对象:

 "5d4d684cadf8750f7077c73c": {
        "time": "2019-08-10T12:33:42.439Z",
        "units": "f",
        "defaultValue": 6,
        "name": "Temp",
        "isEmpty": true
    }

这是我到目前为止尝试过的代码:

  this.setState(prevState => ({
        ...prevState,
        inputConfig: {
            ...inputConfig,
            [id]: {
                ...[id], // gives me {0: "5d4d684cadf8750f7077c739"} instead of the object it holds
            }
        }}),() =>{
          console.log(this.state.inputConfig)
        })

我想解构这个 id 持有的对象。有办法吗？我很感激对此的任何建议。

Answer 1

你需要引用特定id的对象

let obj = {
    "inputConfig": {
        "5d4d684cadf8750f7077c739": {
            "0": "5d4d684cadf8750f7077c739",
            "isEmpty": true
        },
        "5d4d684cadf8750f7077c73c": {
            "time": "2019-08-10T12:33:42.439Z",
            "units": "f",
            "defaultValue": 6,
            "name": "Temp",
            "isEmpty": false
        }
    }
}

let id = "5d4d684cadf8750f7077c73c"

let changed = {
  inputConfig:{
    ...obj.inputConfig,
    [id]:{
      ...obj.inputConfig[id],
      isEmpty: true
    }
  }
}

console.log(changed)