localeUtils.ts

function getMonths(locale: string, format: 'long' | 'short' = 'long') {
  const monthNames = [];
  const currentYear = new Date().getFullYear();
  for (let i = 0; i < 12; i++) {
    monthNames.push(
      new Date(currentYear, i, 1).toLocaleDateString(locale, {
        month: format
      }));
  }
  return monthNames;
}

// getMonths('de')
// ["Januar", "Februar", "März", "April", "Mai", "Juni", "Juli", "August", "September", "Oktober", "November", "Dezember"]