Vue.js - 将对象转换为带有键和值的对象数组

Question

如何将该对象格式化为对象数组

const failed = { 
  "4579043642": "Lodge with set number '4579043642' exists!",
  "4579043641": "Lodge with set number '4579043641' exists!",
  "4579043640": "Lodge with set number '4579043640' exists!",
}

将输出结果改为以下预期的输出结果

[
  {
    "fieldName": "4579043642",
    "message": "set number '4579043642' exists!"
  },
  {
    "fieldName": "4579043641",
    "message": "set number '4579043641' exists!"
  },
  {
    "fieldName": "4579043640",
    "message": "set number '4579043640' exists!"
  }
]

data() {
  return {
    formattedList: [],
  };
},

我尝试使用这个格式进行转换：

uploadFeedbackReject: {
  handler: function(newFeed) {
    if (failed) {
        this.formattedList = [response.failed];
      }
  },
  immediate: true,
  deep: true,
},

我需要帮助。

谢谢。

- Emmathem

---

for...in...，for...of...，Object.keys() + Array.prototype.map()，Object.entries() + Array.prototype.map()，... - Andreas

Answer 1

这个运行良好。

const failed = {
  4579043642: "Lodge with set number '4579043642' exists!",
  4579043641: "Lodge with set number '4579043641' exists!",
  4579043640: "Lodge with set number '4579043640' exists!",
};

const arrayFailed = Object.entries(failed).map((arr) => ({
  fieldName: arr[0],
  message: arr[1],
}));

console.log(arrayFailed);

- Daniel Pantalena

Answer 2

循环遍历对象字段，并将当前属性作为字段名，值作为消息属性推送到一个对象中：

const formerList = {
  "4579043642": "Lodge with set number '4579043642' exists!",
  "4579043641": "Lodge with set number '4579043641' exists!",
  "4579043640": "Lodge with set number '4579043640' exists!",
}

let a = []

for (f in formerList) {
  a.push({
    fieldName: f,
    message: formerList[f]
  })

}

console.log(a)

将对象字段映射为地图：

const formerList = {
  "4579043642": "Lodge with set number '4579043642' exists!",
  "4579043641": "Lodge with set number '4579043641' exists!",
  "4579043640": "Lodge with set number '4579043640' exists!",
}

let a = []

a = Object.keys(formerList).map((field) => {

  return {
    fieldName: field,
    message: formerList[field]
  }
})

console.log(a)

- Boussadjra Brahim

Answer 3

你可以使用Object.keys()循环遍历对象，获取值和名称，将其推入一个对象，然后再将其推入数组中。

let obj = {
  alice: "asdf",
  bob: 3,
  charles: 98.67
}

let arr = [];

for(let i=0; i<Object.keys(obj).length; i++){

  // Get the name and value of the old object
  let name = Object.keys(obj)[i];
  let value = obj[name];
  
  // Create the new object
  let newObj = {
    fieldName: name,
    message: value
  }

  // Push the new object into the array of objects
  arr.push(newObj);
}

- SpicySpices