CODEWITHSUNDEEP
javascriptarraysreact-native
user18240475
user18240475

Reputation:

How to assign key to each Item or value in array in javascript?

I have an array like this:

[link1,link2,link3]

But I want it like this:

[uri:link1,uri:link2,uri:link3]

Please guide me over this. Thanks.

Upvotes: 0

Views: 81

Answers (3)

Dinesh Vishwakarma
Dinesh Vishwakarma

Reputation: 666

If you need in the form of (Array of objects)

var test = ['a', 'b', 'c', 'd'];

function setID(item, index) {
  var fullname = {"id: ": item};
  return fullname;
}

var output = test.map(setID);
console.log(output);

output: [ { "id: ": "a" }, { "id: ": "b" }, { "id: ": "c" }, { "id: ": "d" } ]

Upvotes: 1

Dinesh Vishwakarma
Dinesh Vishwakarma

Reputation: 666

Use Array.from! It's really simple and faster.

var test = ['a', 'b', 'c', 'd'];
var newTest = Array.from(test, val => 'id: '+ val);
console.log(newTest);

output: [ "id: a", "id: b", "id: c", "id: d" ]

Upvotes: 0

petrov
petrov

Reputation: 148

maybe you could try by mapping your array and returning new array of object like this

const array1 = [1, 2, 3, 4];
const newArr = array1.map(i => {return {uri: i}})

console.log(newArr);
// > Array [Object { uri: 1 }, Object { uri: 2 }, Object { uri: 3 }, Object { uri: 4 }]

Upvotes: 2

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