alpha static method
Implementation
static Map<String, String>? alpha(AbstractControl control) {
if (Validators.required(control) != null) return null;
if (RegExp(r'[a-zA-ZåäöÅÄÖ ]').allMatches(control.value as String).length !=
control.value.length) {
return {
'error': Intl.message('Enter alphabet characters only',
name: 'fo_validator_error_alpha')
};
} else {
return null;
}
}