isDefault abstract method
Returns true if this is the default locale.
This method compares the current locale with DEFAULT_LOCALE to determine if they are equivalent.
Example:
final locale1 = Locale('en', 'US');
print(locale1.isDefault()); // Output: true
final locale2 = Locale('fr', 'FR');
print(locale2.isDefault()); // Output: false
Implementation
bool isDefault();