CODEWITHSUNDEEP
javascriptangularjsarraysjson
James
James

Reputation: 1476

How to create array of JSON object from another array using Angular js

hello everyone i have the following issue, i have an array of JSON object like this :

$scope.array_one=[

  {
    "field1": "value 1",
    "field2": "value 2",
    "field3": "value 3",
    "field4": "value 4",
    "field5": "value 5",
    "field6": "value 6",
    "field7": "value 7",
    "field8": "value 8"
  },
  {
    "field1": "value 1",
    "field2": "value 2",
    "field3": "value 3",
    "field4": "value 4",
    "field5": "value 5",
    "field6": "value 6",
    "field7": "value 7",
    "field8": "value 8"
  }

  ...
]

i want to create an new array (from the $scope.array_one) that contains only objects with 3 fields

something like this :

[

  {

    "field2": "value 2",
    "field3": "value 3",
    "field6": "value 6",
    "field8": "value 8"
  },
  {
    "field2": "value 2",
    "field3": "value 3",
    "field6": "value 6",
    "field8": "value 8"
  }

  ...
]

anyone can guide me on how to achieve this, i 'm using Angular js.

Regards !

Upvotes: 1

Views: 1355

Answers (2)

Nina Scholz
Nina Scholz

Reputation: 386883

You could map the wanted parts with a destruction.

var $scope = { array_one: [{ field1: "value 1", field2: "value 2", field3: "value 3", field4: "value 4", field5: "value 5", field6: "value 6", field7: "value 7", field8: "value 8" }, { field1: "value 1", field2: "value 2", field3: "value 3", field4: "value 4", field5: "value 5", field6: "value 6", field7: "value 7", field8: "value 8" }] },
    result = $scope.array_one.map(
        ({ field2, field3, field6, field8 }) => ({ field2, field3, field6, field8 })
    );

console.log(result);
.as-console-wrapper { max-height: 100% !important; top: 0; }

Upvotes: 2

Weedoze
Weedoze

Reputation: 13953

Using Array#Map() to create a new array by returning a new object

let array_one = [
  {
    "field1": "value 1",
    "field2": "value 2",
    "field3": "value 3",
    "field4": "value 4",
    "field5": "value 5",
    "field6": "value 6",
    "field7": "value 7",
    "field8": "value 8"
  },
  {
    "field1": "value 1",
    "field2": "value 2",
    "field3": "value 3",
    "field4": "value 4",
    "field5": "value 5",
    "field6": "value 6",
    "field7": "value 7",
    "field8": "value 8"
  }
];

let newArray = array_one.map(f => ({
  field2 : f.field1,
  field3 : f.field3,
  field6 : f.field6,
  field8 : f.field8,
}));

console.log(newArray);

Upvotes: 1

Related Questions