对象属性检查和格式化日期

Question

检查标头对象类型检查是否类型 == 日期然后对于该属性只需要添加日期格式。 在 headers 对象中查找类型，如果 header 对象类型是日期，则返回最终结果将是格式日期

标题对象：

let headers = [
  {
    key_name: 'trans_id',
    header_value: 'Transaction ID' ,type:'number' 
  },
  {
    key_name: 'start_date',
    header_value: 'Start Date' ,type:'date' 
  }
]

结果对象：

let results = [
  {
    trans_id: '2019124453159',
    start_date:'2021-12-27T00:00:00.000Z',
    code: '$'
  },
  {
    trans_id: '2019120534555',
    start_date:'2021-12-27T00:00:00.000Z',
    code: 'INR'
  }
]

标题类型检查并格式化日期。 预期结果是：

let results = [
  {
    Transaction ID: '2019124453159',
    Start Date : '2021-12-27'
  },
  {
    Transaction ID: '2019120534555',
    Start Date : '2021-12-27'

  }
]

我尝试使用以下脚本返回没有格式化日期：

let headers = [{
    key_name: 'trans_id',
    header_value: 'Transaction ID',
    type: 'number'
  },
  {
    key_name: 'start_date',
    header_value: 'Start Date',
    type: 'date'
  }
]

let results = [{
    trans_id: '2019124453159',
    start_date: '2021-12-27T00:00:00.000Z',
    code: '$'
  },
  {
    trans_id: '2019120534555',
    start_date: '2021-12-27T00:00:00.000Z',
    code: 'INR'
  }
]

const mappedHeaders = results.map((r) => {
  const keys = Object.keys(r);
  let newObj = {};
  for (const key of keys) {
    const newHeader = headers.find((h) => h.key_name === key);
    if (newHeader) newObj[newHeader.header_value] = r[key];
  }
  return newObj;
});
console.log(mappedHeaders)

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js" integrity="sha512-qTXRIMyZIFb8iQcfjXWCO8+M5Tbc38Qi5WzdPOYZHIlZpzBHG3L3by84BBBOiRGiEb7KKtAOAs5qYdUiZiQNNQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>

Answer 1

我添加了一个 if - 这就是你需要的吗？

let headers = [
  { key_name: 'trans_id',   header_value: 'Transaction ID', type: 'number' },
  { key_name: 'start_date', header_value: 'Start Date',     type: 'date' }
]

let results = [{ trans_id: '2019124453159', start_date: '2021-12-27T00:00:00.000Z', code: '$' }, { trans_id: '2019120534555', start_date: '2021-12-27T00:00:00.000Z', code: 'INR' } ];

const mappedHeaders = results.map((r) => {
  const keys = Object.keys(r);
  return  keys.reduce((acc,key) => { 
    const newHeader = headers.find((h) => h.key_name === key);
    if (newHeader) {
      let val = r[key]; 
      if (newHeader.type === 'number') val = parseInt(r[key]);
      else if (newHeader.type === 'date') val = val.split("T")[0];
      acc[newHeader.header_value] = val
    }  
    return acc;
  },{})
});
console.log(mappedHeaders)

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js" integrity="sha512-qTXRIMyZIFb8iQcfjXWCO8+M5Tbc38Qi5WzdPOYZHIlZpzBHG3L3by84BBBOiRGiEb7KKtAOAs5qYdUiZiQNNQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>

Answer 2

您还没有处理标题的类型。检查表头的类型是否为日期，如果则使用moment 格式化并用作值，否则直接使用值。

工作小提琴

let headers = [
  {key_name: 'trans_id',header_value: 'Transaction ID',type: 'number'},
  {key_name: 'start_date',header_value: 'Start Date',type: 'date'}
]

let results = [
  {trans_id: '2019124453159',start_date: '2021-12-27T00:00:00.000Z',code: '$'},
  {trans_id: '2019120534555',start_date: '2021-12-27T00:00:00.000Z',code: 'INR'}
]
const dateFormat = "YYYY-MM-DD";

const mappedHeaders = results.map((r) => {
  const keys = Object.keys(r);
  let newObj = {};
  for (const key of keys) {
    const newHeader = headers.find((h) => h.key_name === key);
    if (newHeader) newObj[newHeader.header_value] = newHeader.type === 'date' ? moment(new Date(r[key])).format(dateFormat) : r[key];
  }
  return newObj;
});
console.log(mappedHeaders)

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js"></script>