How to iterate over an object list containing child objects and create another custom object?

Question

I have an object list like this, I am getting this response from one of the api:

  {
        "1/22/20": {
            "new_daily_deaths": 0,
            "total_cases": 1,
        },
        "1/23/20": {
            "new_deaths": 0,
            "total_cases": 10,
        },
        "1/24/20": {
            "new_deaths": 0,
            "total_cases": 20
        }
  }

Expected Output:

{
   x:1/22/20,1/23/20,1/24/20 // key of every object
   y:1,10,20 //total_cases
 }

Please help me how can we achieve this. I tried object.stringify but its not giving me an expected output.

Answer 1

You can use Object.keys() & Object.entries() methods for this like:

 const data = { "1/22/20": { "new_daily_deaths": 0, "total_cases": 1, }, "1/23/20": { "new_deaths": 0, "total_cases": 10, }, "1/24/20": { "new_deaths": 0, "total_cases": 20 } } const keys = Object.keys(data).join(',') const cases = Object.entries(data).map(([k,v]) => v).map(x=>x.total_cases).join(',') const result = { x: keys, y: cases} console.log(result)

---

output as {x:1/22/20, y:1}, {x:1/23/20,y:10}

 const data = { "1/22/20": { "new_daily_deaths": 0, "total_cases": 1, }, "1/23/20": { "new_deaths": 0, "total_cases": 10, }, "1/24/20": { "new_deaths": 0, "total_cases": 20 } } const result = Object.entries(data).map(([k,v]) => ({x: k, y: v.total_cases})) console.log(result)