export function chooseMomentLocale()

in packages/@fbcmobile-ui/Utils/DateUtils.js [25:44]

• 9 lines of code
• 3 McCabe index (conditional complexity)

export function chooseMomentLocale(locale: string): string {
  // make the locale lower case
  // will fix crashes caused by "en-GB" (instead of "en-gb") not being found
  const localeLowerCase = locale.toLowerCase();
  if (moment.locales().includes(localeLowerCase)) {
    // check if the locale is included in the array returned by `locales()`
    // which (in this case) tells us which locales moment will support
    return localeLowerCase;
  } else if (moment.locales().includes(localeLowerCase.substring(0, 2))) {
    // check if the first two letters of the locale are included in the array
    // returned by `locales()` which (in this case) tells us which locales
    // moment will support
    // will fixes crashes caused by "en-US" not being found, as we'll tell
    // moment to load "en" instead
    return localeLowerCase.substring(0, 2);
  }
  // use "en" (the default language and locale for my app) as
  // a fallback if we can't find any other locale
  return 'en';
}