canonicalizedLocale method Null safety
- String? aLocale
Return the name
aLocale turned into xx_YY where it might possibly be
in the wrong case or with a hyphen instead of an underscore. If
aLocale is null, for example, if you tried to get it from IE,
return the current system locale.
static String canonicalizedLocale(String? aLocale) => helpers.canonicalizedLocale(aLocale);