combining and filtering array of objects into a single object in javaScript

Question

let myCurrentData = [
  {
    _id: "D01",
    name: "Lunetts",
    profession: "shop",
  },
  {
    _id: "D02",
    name: "Glasses",
    profession: "keeper",
  },
  {
    _id: "D03",
    name: "Auros",
    profession: "UiiSii",
  },
];

Above is my myCurrentData, I want to convert this array into a final object like the following

 let myFinalData = {
 D01: "Lunetts",
  D02: "Glasses",
  D03: "Auros"
}

i just want to use the values of _id and name

What have you tried so far? Object.fromEntries and myCurrentData.map should help — evolutionxbox
– evolutionxbox, Commented Jun 24, 2022 at 16:52

Md Shadman Matin · Accepted Answer · 2022-06-24 17:00:23Z

1

const myCurrentData = [
  {
    _id: "D01",
    name: "Lunetts",
    profession: "shop",
  },
  {
    _id: "D02",
    name: "Glasses",
    profession: "keeper",
  },
  {
    _id: "D03",
    name: "Auros",
    profession: "UiiSii",
  },
];

const finalObject = myCurrentData
  .map((eachObject) => {
    const { profession, name, _id } = eachObject;
    return {
      [_id]: name,
    };
  })
  .reduce((prev, current) => {
    return {
      ...prev,
      ...current,
    };
  }, {});

console.log("finalObject is", finalObject);

Hope it works!

answered Jun 24, 2022 at 17:00

Md Shadman Matin

1,25910 silver badges17 bronze badges

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

1 Comment

Andy Over a year ago

Reaching for map and then reduce is making the code way too complicated when there is a far simpler alternative.

Andy · Accepted Answer · 2022-06-24 17:13:07Z

1

Use a simple loop to create a new object.

const data=[{_id:"D01",name:"Lunetts",profession:"shop"},{_id:"D02",name:"Glasses",profession:"keeper"},{_id:"D03",name:"Auros",profession:"UiiSii"}];

const out = {};

for (const obj of data) {
  out[obj._id] = obj.name;
}

console.log(out);

answered Jun 24, 2022 at 17:13

Andy

63.6k13 gold badges72 silver badges99 bronze badges

Comments

Felipe · Accepted Answer · 2022-06-24 17:33:47Z

0

You can achieve this using reduce and returning an object from it:

const myObj=  myCurrentData.reduce((acc,curr)=> {
    return {...acc, [curr._id]:curr.name}
  
}, {})

answered Jun 24, 2022 at 17:33

Felipe

4444 silver badges9 bronze badges

Comments

Alvison Hunter · Accepted Answer · 2022-06-24 17:39:20Z

0

You could take advantages of the Object.entries method combined with a forEach loop to get the properties name and values and add it to your previously declare myFinalData Object. Something like this could be what you are looking for. Hope it helps, bud.

const myCurrentData = [
  {
    _id: "D01",
    name: "Lunetts",
    profession: "shop",
  },
  {
    _id: "D02",
    name: "Glasses",
    profession: "keeper",
  },
  {
    _id: "D03",
    name: "Auros",
    profession: "UiiSii",
  },
];


 const myFinalData = {}
Object.entries(myCurrentData).forEach(([k,v]) => { myFinalData[v['_id']] = v['name']})

console.log(myFinalData);

answered Jun 24, 2022 at 17:39

Alvison Hunter

6835 silver badges13 bronze badges

Collectives™ on Stack Overflow

combining and filtering array of objects into a single object in javaScript

4 Answers 4

1 Comment

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

1 Comment

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related