Convert 2D array to array of objects

June 5, 2022

I have been trying to convert this data:

var myArray = [
[1,2,3,4],
["1","2","3","4"],
["a", "b", "c", "d"]
]

to this:

var result = [
  {
    "num": 1,
    "str": "1",
    "let": "a"
  },
  {
    "num": 2,
    "str": "2",
    "let": "b"
  },
  {
    "num": 3,
    "str": "3",
    "let": "c"
  },
  {
    "num": 4,
    "str": "4",
    "let": "d"
  }
]

Any assistance will be extremely helpful. I have tried various iterations but none of them yield what I am hoping for.

I am trying to use this:

objectified_data = array_data.map(function(x) {
    return {    
        "num": x[0],
        "str": x[1],
        "let": x[2]
    }
})

But I cannot figure out how to make the homogenous set of array, heterogenous for this to work. Ultimately, I am trying to filter out certain keys, so the original data as it was is not working for that task

>Solution :

You can achieve this with a simple for

var myArray = [
  [1, 2, 3, 4],
  ["1", "2", "3", "4"],
  ["a", "b", "c", "d"]
]
const json = [];

for (let i = 0; i < myArray[0].length; i++) {
  json.push({
    num: myArray[0][i],
    let: myArray[1][i],
    str: myArray[2][i],
  });
}

console.log(json);