How can I print the return value of this nested data as an array [duplicate]

Question

I will like to print [4, 5, 2] as the value of supervisors in the following nested array/objects.

var data = {
   supervisors: [
     {
      0: [
          { 
            id: 4, 
            name: "Reporter"
          }
        ]
     },
     {
      1: [
          { 
            id: 5, 
            name: "Officer"
          }
        ]
     },
     {
      2: [
          { 
            id: 2, 
            name: "Coordinator"
          }
        ] 
     },
     ]
};

How can I loop through the data?

You need Array.map for this. And you obviously need to know how to access properties and array elements. — user5734311
– user5734311, Commented Jul 13, 2021 at 9:15
Are you able to fix the thing that's giving you that data structure to just be a simple array of objects? — Andy
– Andy, Commented Jul 13, 2021 at 9:16
stackoverflow.com/questions/16626735/… here is a related question — TinsG
– TinsG, Commented Jul 13, 2021 at 9:18
data.supervisors.flatMap(item => Object.values(item).map(value => value[0].id)) — mplungjan
– mplungjan, Commented Jul 13, 2021 at 9:21
@mplungjan you nailed it. You can post this as a correct answer — Jetro Olowole
– Jetro Olowole, Commented Jul 13, 2021 at 9:25

Rui Costa · Accepted Answer · 2021-07-13 09:53:22Z

0

let data = {
  supervisors: [{
      0: [{
        id: 4,
        name: "Reporter"
      }]
    },
    {
      1: [{
        id: 5,
        name: "Officer"
      }]
    },
    {
      2: [{
        id: 2,
        name: "Coordinator"
      }]
    },
  ]
};

let output = []
data.supervisors.forEach(item => {

  output.push(item[Object.keys(item)][0].id)

});

console.log(output)

answered Jul 13, 2021 at 9:53

Rui Costa

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