How to replace multiple caracters in array? – Javascript

February 11, 2022

I am learning Javascript,
I want to replace some caracters of this array:

 let array={
     "name": Juan,
     "result": [
     [2,1,2],
     [1,0,2],
     [0,2,1]
     ]
    }

I would like to replace in this way "2" -> "a", "1" -> "b", "0" -> "";

Result should be:

 let array= {
     "name": Juan,
     "result": [
     [a,b,a],
     [b, ,a],
     [ ,a,b]
     ]
    }

How is the best way to do it?

>Solution :

Iterate over aray.result and replace each element. You can either use a nested for loop or a nested map.

let array = {
  "name": "Juan",
  "result": [
    [2, 1, 2],
    [1, 0, 2],
    [0, 2, 1]
  ]
};

array.result = array.result.map(row => row.map(el => {
  switch (el) {
    case 2: return 'a';
    case 1: return 'b';
    case 0: return '';
    default: return el;
  }
}));

console.log(array);