how to get particular value to create an array from a nested object

Question

I have this below object structure which is having 3 records as a sample now. But We will be having more than 20 records.

{
    "data": [{
            "datatype": "AccessoryProduct",
            "values": {
                "identifier": "access8770009prd",
                "shortdescription": "<p>Hybrid Dual Injection Cover and a Tempered Glass.<\/p>",
                "displayname": "Protection Essentials Bundle - Samsung Galaxy S9 (Clear) 822445132623"
            }
        },
        {
            "datatype": "AccessoryProduct",
            "values": {
                "identifier": "access8530068prd",
                "shortdescription": "String.class",
                "displayname": "JBL UA Flex Headphones (Gray) - 050036342735"
            }
        }, {
            "datatype": "AccessoryProduct",
            "values": {
                "identifier": "access8630012prd",
                "shortdescription": "<p>This slim case has everything you want - style and protection.<\/p>",
                "displayname": "Otterbox Symmetry Series Case - Samsung Galaxy S9 (Clear) - 660543444121"
            }
        }
    ]
}

From the above object, I need to get this below array.

identifierList = [ 'access8770009prd', 'access8530068prd', 'access8630012prd' ]

as a single dimensional array. Can anyone please provide an efficient approach.

The same as you mention as "JSON object". From the tag-Wiki: "JSON (JavaScript Object Notation) is a textual data interchange format and language-independent. Use this tag when this text format is involved. DO NOT USE THIS TAG FOR NATIVE JAVASCRIPT OBJECTS OR JAVASCRIPT OBJECT LITERALS." — Teemu
– Teemu, Commented Sep 10, 2018 at 11:26
Your identifierList in your desired output is not an array but an object instead. I take it this should've been ['access8770009prd', 'access8530068prd', 'access8630012prd']? — Thijs
– Thijs, Commented Sep 10, 2018 at 11:40

ashish singh · Accepted Answer · 2018-09-10 11:21:13Z

1

if a is the json you have you can do the follwing

identifierList = a.data.map(x => x.values.identifier)

answered Sep 10, 2018 at 11:21

ashish singh

6,9142 gold badges18 silver badges41 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Shanmugam Over a year ago

OK fine. I ll try it and let u know

Ankit Agarwal · Accepted Answer · 2018-09-10 11:25:40Z

You can use map() with array destructuring to get that array of identifier.

var data = [{
    "datatype": "AccessoryProduct",
    "values": {
      "identifier": "access8770009prd",
      "shortdescription": "<p>Hybrid Dual Injection Cover and a Tempered Glass.<\/p>",
      "displayname": "Protection Essentials Bundle - Samsung Galaxy S9 (Clear) 822445132623"
    }
  },
  {
    "datatype": "AccessoryProduct",
    "values": {
      "identifier": "access8530068prd",
      "shortdescription": "String.class",
      "displayname": "JBL UA Flex Headphones (Gray) - 050036342735"
    }
  }, {
    "datatype": "AccessoryProduct",
    "values": {
      "identifier": "access8630012prd",
      "shortdescription": "<p>This slim case has everything you want - style and protection.<\/p>",
      "displayname": "Otterbox Symmetry Series Case - Samsung Galaxy S9 (Clear) - 660543444121"
    }
  }
];
var identifierList = data.map(({values}) => values.identifier);
console.log(identifierList);

USING forEach()

var data = [{
    "datatype": "AccessoryProduct",
    "values": {
      "identifier": "access8770009prd",
      "shortdescription": "<p>Hybrid Dual Injection Cover and a Tempered Glass.<\/p>",
      "displayname": "Protection Essentials Bundle - Samsung Galaxy S9 (Clear) 822445132623"
    }
  },
  {
    "datatype": "AccessoryProduct",
    "values": {
      "identifier": "access8530068prd",
      "shortdescription": "String.class",
      "displayname": "JBL UA Flex Headphones (Gray) - 050036342735"
    }
  }, {
    "datatype": "AccessoryProduct",
    "values": {
      "identifier": "access8630012prd",
      "shortdescription": "<p>This slim case has everything you want - style and protection.<\/p>",
      "displayname": "Otterbox Symmetry Series Case - Samsung Galaxy S9 (Clear) - 660543444121"
    }
  }
];
var identifierList = [];
data.forEach(({values}) => identifierList.push(values.identifier));
console.log(identifierList);

Collectives™ on Stack Overflow

how to get particular value to create an array from a nested object

2 Answers 2

1 Comment

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related