While loop to print vowels and other elements on a new line in JavaScript

Question

Trying to print any vowels from a word on a new line in the order they appear. Then do the same for each constant after all the vowels have been printed.

I've tried using breaks and a switch case but the code wouldn't work.

function vowelsAndConsonants(s) {
    var atom = s.length;
    var i = 0;
    while (i <= atom)
    {
        if (s[i] === 'a' || s[i] === 'e' || s[i] === 'i' || s[i] === 'o' || s[i] === 'u') {
            console.log('\n' + s[i]);
        }
        else {
            console.log('\n' + s);
        }
    }

}

I expect an output to be like:

a
i
o

Then the consonants in the order they appear:

t
p
r

Answer 1

So here is the final code that I used. Thank for the help Dash and summit. I combined both of their codes.

// This is the function with the parameter which will have the input.
function vowelsAndConsonants(s) {

  // This lists, all the vowels. Since I know the input is all lowercase, there is no need for uppercase. A lowercase method could also be used.
  const vowels = ['a', 'e', 'i', 'o', 'u'];

  // The input is split up to avoid printing the entire string, and is stored in a variable.
  var letters = s.split('');

  // An array to hold the vowels is created.
  var vowelsFound = [];

  // An array to hold the consonants is created.
  var consonantsFound = [];


  // Loops through all the split up characters held in the letters variable.
  for (var i in letters) {

    // If statement tests by using include to see if any of vowels match the i looper.
    if (vowels.includes(letters[i])) {
    
      // If any vowels do match, then they get added to the end of the vowelsFound array,
      // which then get pushed up, so that it can be printed in the order they appear.
      vowelsFound.push(letters[i]);

      // The same process is used for the consonants.
    } else {
      consonantsFound.push(letters[i]);
    }
  }

  // Prints the vowels in their order, on a new line for each character.
  console.log(vowelsFound.join('\n'));
  console.log(consonantsFound.join('\n'));
}

vowelsAndConsonants("test");
vowelsAndConsonants("astronaut");