Javascript 重新格式化JS对象以获取年/月/周总数

我有以下资料：

{
   "2011":{
      "01":{
         "01":[
            {
               "date":"2011-01-01"
            },
            {
               "date":"2011-01-02"
            }
         ]
      },
      "02":{
         "01":[
            {
              
               "date":"2011-02-02"
            }
         ],
         "03":[
            {
               "date":"2011-02-15"
            },
            {                  
               "date":"2011-02-17"
            }
         ]
      }
   },
   "2012":{
      "01":{
         "01":[
            {
               "date":"2012-01-01"
            }
         ]
      },
      "03":{
         "01":[
            {
               "date":"2012-03-03"
            }
         ]
      }
   }
}

我需要以以下格式构建最终数据：

[{year:2011,month:'Jan',week_no:1, week_total:2},
{year:2011,month:'Jan',week_no:2, week_total:2},
{year:2012,month:'Jan',week_no:1, week_total:1}
{year:2012,month:'Mar',week_no:1, week_total:1}]

目的是获得年/月/周总计。 以后绘制一些图表时需要这些数据。 非常感谢您在这方面的帮助

提前谢谢

---

ASJ

我们可以通过每年、每月和每周循环来转换数据。 然后根据我们创建的信息构造一个对象

假设

ogData

是您希望转换的数据

var years=Object.key（ogData）；
var newData=[]；
对于（var i=0；i请尝试此操作（内联注释中的详细信息）：

我认为你的输出应该是5项，而不是4项。对于现有的每一周1项。输出：

[
    { month: "Jan", week_no: 1, week_total: 2, year: 2011 },
    { month: "Feb", week_no: 1, week_total: 1, year: 2011 },
    { month: "Feb", week_no: 3, week_total: 2, year: 2011 },
    { month: "Jan", week_no: 1, week_total: 1, year: 2012 },
    { month: "Mar", week_no: 1, week_total: 1, year: 2012 }
]

试试这个


var obj=JSON.parse(`{
"2011": {
"01": {
"01": [{
“日期”：“2011-01-01”
},
{
“日期”：“2011-01-02”
}
]
},
"02": {
"01": [{
“日期”：“2011-02-02”
}],
"03": [{
“日期”：“2011-02-15”
},
{
“日期”：“2011-02-17”
}
]
}
},
"2012": {
"01": {
"01": [{
“日期”：“2012-01-01”
}]
},
"03": {
"01": [{
“日期”：“2012-03-03”
}]
}
}
}`);
var输出=[]；
风险值月份=[“一月”、“二月”、“三月”、“四月”、“六月”、“七月”、“八月”、“九月”、“十月”、“十一月”、“十二月”]；
for（obj中的var键）{
for（对象[key]中的变量k）{
var[u int=obj[key][[u k]；
用于（变量w in_int）{
push（{年：parseInt（键），月：月[parseInt（_k）-1]，周号：parseInt（_w），周总数：_int[_w].length}）；
}
}
}
console.log（output）；
这一个绝对是最正确和最可读的。我考虑过使用
Array.prototype.flatMap（）
，但似乎使用嵌套for循环更有效。
// Your data
const data = {
   "2011":{
      "01":{
         "01":[
            {
               "date":"2011-01-01"
            },
            {
               "date":"2011-01-02"
            }
         ]
      },
      "02":{
         "01":[
            {
              
               "date":"2011-02-02"
            }
         ],
         "03":[
            {
               "date":"2011-02-15"
            },
            {                  
               "date":"2011-02-17"
            }
         ]
      }
   },
   "2012":{
      "01":{
         "01":[
            {
               "date":"2012-01-01"
            }
         ]
      },
      "03":{
         "01":[
            {
               "date":"2012-03-03"
            }
         ]
      }
   }
};

// Helper for month codes
const monthCodes = [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", 
  "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ];

// Init empty plot data object
let plotData = [];

// Loop year input data object
for (const [yearKey, yearValue] of Object.entries(data)) {

  // Loop month input data object
  for (const [monthKey, monthValue] of Object.entries(yearValue)) {
    const weeksInMonth = Object.entries(monthValue);
    
    // Loopp week input data
    for (const [weekKey, weekValue] of weeksInMonth) {
        // Create new data item for year and month
        const dataItem = { 
            year: parseInt(yearKey),
            month: monthCodes[parseInt(monthKey) - 1],
            week_no: parseInt(weekKey),
            week_total: weekValue.length
        };
      
        // Insert to plot data item
        plotData.push(dataItem);
    }
  }
}

console.log(plotData);

[
    { month: "Jan", week_no: 1, week_total: 2, year: 2011 },
    { month: "Feb", week_no: 1, week_total: 1, year: 2011 },
    { month: "Feb", week_no: 3, week_total: 2, year: 2011 },
    { month: "Jan", week_no: 1, week_total: 1, year: 2012 },
    { month: "Mar", week_no: 1, week_total: 1, year: 2012 }
]