Array creating using specific property of array of objects

Question

There is an array of objects as follows. Need to create an array only using VatCode propery from following array of objects without going through a 'for loop'. Here result should be
resultArray = [1, 15, 25]

"Data": [
    {
        "Id": 1,
        "VatCode": 1,
        "Name": "Ingen mva.",            
        "VatAccount": {
            "ID": 3,
            "AccountNo": "3190",
            "Name": "Misc Items Income"
        }            
    },
    {
        "Id": 2,
        "VatCode": 15,
        "Name": "Lav mva.",           
        "VatAccount": {
            "ID": 3,
            "AccountNo": "3190",
            "Name": "Misc Items Income"
        }
    },
    {
        "Id": 3,
        "VatCode": 25,
        "Name": "Høy mva.",           
        "VatAccount": {
            "ID": 3,
            "AccountNo": "3190",
            "Name": "Misc Items Income"
        }
    },

]

Congratuations--you have won the special badge for most typos in one question title. By the way, this question has nothing to do with either Angular or JSON. — , Jul 26 '17 at 11:09

Rahul Singh · Accepted Answer · 2017-07-26T09:37:42.473

Data = //your json data    

this.Data.map(data => data.VatCode);

The map() method creates a new array with the results of calling a function for every array element.

var data = [
    {
        "Id": 1,
        "VatCode": 1,
        "Name": "Ingen mva.",            
        "VatAccount": {
            "ID": 3,
            "AccountNo": "3190",
            "Name": "Misc Items Income"
        }            
    },
    {
        "Id": 2,
        "VatCode": 15,
        "Name": "Lav mva.",           
        "VatAccount": {
            "ID": 3,
            "AccountNo": "3190",
            "Name": "Misc Items Income"
        }
    },
    {
        "Id": 3,
        "VatCode": 25,
        "Name": "Høy mva.",           
        "VatAccount": {
            "ID": 3,
            "AccountNo": "3190",
            "Name": "Misc Items Income"
        }
    },

];

var s = data.map(data => data.VatCode);
console.log(s);

Array creating using specific property of array of objects

1 Answers1