Converting an array of arrays into an object with key and value with javascript

Question

method input: (['name', 'marcus'], ['address', 'New York']

method output: {name: marcus, address: New York}

How do i do it?

cont array = [['c','2'],['d','4']];

function objectify()
{
    array.forEach(arrayElement => { for(let i = 0; i<2; i++){
            const obj = Object.assign({array[i][i]}, array[i++])
    }
    return obj;
})

}

console.log(objectify);

You should add [minimal reproducible code](https://stackoverflow.com/help/minimal-reproducible-example), so that people can understand your problem and help you. [see why you shouldn't post image as a code or an error](https://meta.stackoverflow.com/questions/285551/why-not-upload-images-of-code-errors-when-asking-a-question#:~:text=You%20should%20not%20post%20code,order%20to%20reproduce%20the%20problem.) — DecPK, Dec 03 '21 at 12:57
@MarcusRibas If it failed, not a problem, just shared what you have tried till now. Even though the code is not working — DecPK, Dec 03 '21 at 12:57

score 1 · Answer 1 · answered Dec 03 '21 at 12:58

1

You can use Object.fromEntries()

const data = [['name', 'marcus'], ['address', 'New York']];
const result = Object.fromEntries(data);
console.log(result);

answered Dec 03 '21 at 12:58

axtck

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score 0 · Answer 2 · answered Dec 03 '21 at 13:01

1) If you are using forEach then you don't have to use for loop inside it

array.forEach(arrayElement => { for(let i = 0; i<2; i++){
            const obj = Object.assign({array[i][i]}, array[i++])
    }

2) You shouldn't hardcode the length upto which i will run, because it can be of any length.

for(let i = 0; i<2; i++)

If you are using forEach then you should loop over the array and get the key and value and set it into the resultant object.

function objectify(array) {
  const result = {};
  
  array.forEach((o) => {
    const [key, value] = o;
    result[key] = value;
  });

  return result;
}

const array = [
  ["c", "2"],
  ["d", "4"],
];
console.log(objectify(array));

@MarcusRibas Not a problem, Glas I could help – DecPK Dec 03 '21 at 13:09 — DecPK, Dec 03 '21 at 13:09

Converting an array of arrays into an object with key and value with javascript

2 Answers2