javascript sort array strings alphabetically

users.sort((a, b) => a.firstname.localeCompare(b.firstname))

//sort array alphabetically
objArray.sort(function(a, b) {
   return a.localeCompare(b);
});

var items = ['réservé', 'premier', 'communiqué', 'café', 'adieu', 'éclair'];
items.sort((a, b) =>
   a.localeCompare(b)//using String.prototype.localCompare()
);

function sortString(str){
  var arr = str.split('');
  var sorted = arr.sort();
  return sorted.join('');
}Copy