Parse Json array push javascript

Question

I have Json Parse list which need to push each category list. example :

    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])
   }

expected out put:

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

There isn't any JSON in the code you posted. JSON is a text representation of some data structure. All you have there is an object whose properties are arrays. No JSON. — axiac
– axiac, Commented Feb 12, 2019 at 7:35

Amardeep Bhowmick · Accepted Answer · 2019-02-12 05:06:44Z

3

Just use Object.keys to get the dates in the array.

const 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 = Object.keys(listChartPeriods);
console.log(categoryData);

answered Feb 12, 2019 at 5:06

Amardeep Bhowmick

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Comments

Spangle · Accepted Answer · 2019-02-12 05:18:53Z

Below should get the job done for you. A for in loop is your friend when it comes to working with objects.

var 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 = [];

for(var char in listChartPeriods){
	for(var i = 0; i < listChartPeriods[char].length; i++){
		categoryData.push(listChartPeriods[char][i]);
	}
}
console.log(categoryData);

EDIT: Just read your updated question and you are only wanting the key names. You can also do this with a for in loop.

for(var char in listChartPeriods){
	categoryData.push(char)
}
console.log(categoryData);

Linto · Accepted Answer · 2019-02-12 05:26:00Z

0

Following the solution:

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

categoryData = ["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]

answered Feb 12, 2019 at 5:26

Linto

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