如何从数组而不是对象中提取数据？

Question

如何正确地从数组而不是 [Object] 中提取数据

api客户端

export interface apiRequest {
  locations: LocationOptions[];

}
interface FOLocations {
  locationId: number;
}

interface LocationResult {
  location: FOLocations[];
  cityName: string;
}

export const locationCheck = async (
  apiKey: string,
  payload: apiRequest
): Promise<LocationResult[]> => {
  let response = await axios.post<LocationResult[]>(
    `api...`,
    payload
  );
  return response.data;

运行代码

  const locationPayload : apiRequest = {
      locations:[{ cityName: "London"},{cityName: "New York"},{cityName: "Paris"}],
    };
    const locationResponse = await locationCheck(apiKey,locationPayload);
    const locationResponseRes =  locationResponse;
    console.log(locationResponseRes);

我需要获取值 locationResponseRes.cityName 。 实际输出：

[
  {
    location: { locationId: 1, address: [Object] },
    deliveryOptions: [ [Object] ]
  },
  {
    location: { locationId: 2,},
    cityName: [ [Object] ]
  }
]
{
  "location": {
    "locationId": 1,
    cityName: [ [Object] ]
  }
}

预期输出（我在 Postman 中得到的）

[
    {
        "location": {
            "locationId": 1,
            "cityName: "London",
        }
    },
    {
        "location": {
            "locationId": 2,
            "cityName": "New York",
        },    
},
]

以及如何到达locationResponseRes.cityName？

Answer 1

有几种方法可用于控制台嵌套对象。

最好的方法是使用

console.log(JSON.stringify(obj, null, 2))

其中 2 是用于缩进的空格数。

另一种选择是使用

const util = require('util')

console.log(util.inspect(myObject, {showHidden: false, depth: null}))

// alternative shortcut
console.log(util.inspect(myObject, false, null, true /* enable colors */))

或

require('util').inspect.defaultOptions.depth = null
console.log(obj)

但问题是2级之后的嵌套对象现在被展平了，这可能是复杂对象的问题。

查看Node.js official documentation