list-generator.js

// need to fill these out
const RTL = ['ar', 'whatevs'];
const reverseComma = ['ar'];

function generateList(arr, languageCode) {
  const rtl = RTL.indexOf(languageCode) >= 0;
  const comma = reverseComma.indexOf(languageCode) >= 0 ? '،' : ',';
  
  if (rtl) {
    return arr.reverse().join(` ${comma}`);
  } else {
    return arr.join(`${comma} `)
  }
}