Pretty Print SEK

pp-sek.js

"use strict";

function pn(number) {
  const str = number.toString();
  const chunks = ["SEK"];

  for (let i = 0; i < str.length; i += 3) {
    chunks.unshift(str.substring(str.length - i - 3, str.length - i));
  }
  return chunks.join(" ");
}

function ppn(number) {
  const str = number.toString();
  let result = "SEK";

  for (let i = 0; i < str.length; i += 3) {
    result = str.substring(str.length - i - 3, str.length - i) + " " + result;
  }
  return result;
}