javascript - 解析Json数组推送JavaScript

我有Json Parse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])
   }

预期输出：

categoryData=["2018-05-04","2018-05-11","2018-05-18","2018-05-25","2018-06-01"]

 values=[21807210.5028442,21807210.5028442,21807210.5028442]//each category values

最佳答案

只需使用Object.keys即可获取数组中的日期。