Question 278357 in Javascript Question posted in
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Separate Array into multiple objects in Javascript

How to separate the Array to objects,

Need to convert the following
arr = [
    { name: 'abc', age: 15, roll_no: 25 },
    { name: 'def', age: 10, roll_no: 20 },
    { name: 'xyz', age: 16, roll_no: 18 },
  ];

Expected Output :

arr = [ abc : { name: 'abc', age: 15, roll_no: 25 },
        def : { name: 'def', age: 10, roll_no: 20 },
        xyz : { name: 'xyz', age: 16, roll_no: 18 }]

Kindly help me in this. Thanks in Advance

Tags:

3

Answers


  1. 0 
    arr.map(a=>{return {[a.name]:a}})
//output
[
    {
        "abc": {
            "name": "abc",
            "age": 15,
            "roll_no": 25
        }
    },
    {
        "def": {
            "name": "def",
            "age": 10,
            "roll_no": 20
        }
    },
    {
        "xyz": {
            "name": "xyz",
            "age": 16,
            "roll_no": 18
        }
    }
]
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  2. 0

    we can do this via forEach though not an efficient way

    arr = [
    { name: 'abc', age: 15, roll_no: 25 },
    { name: 'def', age: 10, roll_no: 20 },
    { name: 'xyz', age: 16, roll_no: 18 },
  ];

// empty object
const obj = {};

// Looping through & adding
arr.forEach(item => {
  obj[item.name] = item;
});

console.log(obj);
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  3. 0 
    arr.reduce((acc, curr) => {
  acc[curr.name] = curr;
  return acc;
}, {});
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