I'm only able to return 1 array

Question

I'm trying to take this array and split it into 2 new arrays, evens and odds and return them. When I run the code below I am only getting the odds, why is that? And what can I do to solve it?

Thanks in advance.

var numbersArray = [1,2,34,54,55,34,32,11,19,17,54,66,13];

function divider( arr ) {
  var evens = [];
  var odds = [];
  for (var i = 0; i < arr.length; i++) {
    if (arr[i] % 2 === 0) {
      evens.push(arr[i]);
    } else {
      odds.push(arr[i]);
    }
  }
  return(evens, odds);
}

divider(numbersArray);

Answer 1

Because JavaScript can only return one value. Ever.

return(evens, odds)

evaluates to the same value as

return odds

due to the comma operator wrapped in grouping parenthesis.

Perhaps returning an array of arrays (or even an object of arrays) is useful..

return [evens, odds]

Answer 2

You should return your results as an array.

return [evens, odds];

And then to access the results:

var evens;
var odds;

var arrayResults = divider(numbersArray);
evens = arrayResults[0];
odds = arrayResults[1];
console.log(evens);
console.log(odds);