make Initials From Name

makeInitialsFromName

function makeInitialsFromName(strName) {
  const arrName = strName.split('');
  const firstLetter = strName.charAt(0).toUpperCase();
  let arrInitials = [];
  arrInitials.splice(0, 0, firstLetter, '. ')
  for (var i = 0; i < arrName.length; i++) {
    if (arrName[i] == ' ') {
      const secondLetter = arrName[i + 1].toUpperCase();
      arrInitials.splice(0, 0, secondLetter, '.');
      const initials = arrInitials.toString().replace(/,/g, '');
      console.log(initials);
    }
  }
}

makeInitialsFromName('alex ko');