解析Json数组推送javascript

我有Json解析列表，需要推送每个类别列表。 例如：

    listChartPeriods={"2018-05-04":[21807210.5028442,21807210.5028442,21807210.5028442,21807210.5028442],"2018-05-11":[21807210.5028442,21807210.5028442,21807210.5028442,21807210.5028442],"2018-05-18":[21807210.5028442,21807210.5028442,21807210.5028442,21807210.5028442],"2018-05-25":[21807210.5028442,21807210.5028442,21807210.5028442,21807210.5028442],"2018-06-01":[21807210.5028442,21807210.5028442,21807210.5028442,21807210.5028442]}
  var categoryData = [];
  var values = [];
  for(var i=0;i<listChartPeriods.length;i++){
      categoryData.push(listChartPeriods.slice(0,1)[0]); //here need to push each date  
      values.push(listChartPeriods[i])
   }

---

只需使用

Object.keys

即可获得数组中的日期

const listChartPeriods={“2018-05-04”：[21807210.50284221807210.50284221807210.50284221807210.5028442]，“2018-05-11”：[21807210.50284221807210.50284221807210.50284221807210.5028422180742]，“2018-05-18”：[21807210.50284221807210.50284221807210.50284221807210.5028422188442]，“2018-05-25”：[21807210.5028442,21807210.5028442,21807210.5028442,21807210.5028442],"2018-06-01":[21807210.5028442,21807210.5028442,21807210.5028442,21807210.5028442]}
var categoryData=Object.keys（listChartPeriods）；
下面的console.log（categoryData）；

应该可以帮您完成这项工作。在使用对象时，for-in循环是您的朋友

var listChartPeriods={“2018-05-04”：[21807210.50284221807210.50284221807210.50284221807210.5028442]，“2018-05-11”：[21807210.50284221807210.50284221807210.50284221807210.50284221807210.5028422]，“2018-05-18”：[21807210.50284221807210.50284221807210.5028422180742]，“2018-05-25”：[21807210.5028442,21807210.5028442,21807210.5028442,21807210.5028442],"2018-06-01":[21807210.5028442,21807210.5028442,21807210.5028442,21807210.5028442]}
变量categoryData=[]；
for（listChartPeriods中的var char）{
对于（var i=0；iconsole.log（categoryData）；

解决方案如下：

 for (let date in listChartPeriods){
    categoryData.push(date);
    let [first] = listChartPeriods[date];
    values.push(first);
 }

分类数据=[“2018-05-04”、“2018-05-11”、“2018-05-18”、“2018-05-25”、“2018-06-01”]

---

values=[21807210.5028442、21807210.5028442、21807210.5028442、21807210.5028442、21807210.5028442]

预期的输出是什么？您发布的代码中可能没有任何JSON的副本。是某些数据结构的文本表示。您只有一个属性为数组的对象。没有JSON。

 for (let date in listChartPeriods){
    categoryData.push(date);
    let [first] = listChartPeriods[date];
    values.push(first);
 }