Merge two of one dimensional array into two dimensional array javascript

Question

I have n (but for now, let say just two) of one dimensional arrays like this image of my console :

And I want to merge these two arrays by the corresponding key and put it into two dimensional array :

The result is something like :

[["1 279 226,08" , "127"],[null , null],["-188 033,77", "154"],..... so on ......]

And the list of one dimensional array is dynamic, it could be more than 2 arrays.

So example if I have 3 arrays, then my two dimensional array would look like :

[ ["1 279 226,08" , "127" , "blabla"], [null , null , "blabla"], ["-188 033,77", "154", "blabla"], ..... so on ......]

Any ideas of implementing it would be appreciate.

Answer 1

Since all of your arrays have the same size, you can loop just on the lenght of the first array, i.e. a.

Then we pass to appendArrays the single value of a , b, ..., and we return the an array to push into merged

var a = ["123", null, "ciao"]
var b = ["321", 1, "pippo"]
var c = ["111", 5, "co"]

var merged = []

for (i = 0; i < a.length; i++) {
  merged.push(appendArrays(a[i], b[i], c[i]));
}
console.log(merged);

function appendArrays() {
  var temp = []
  for (var i = 0; i < arguments.length; i++) {
    temp.push(arguments[i]);
  }
  return temp;
}