isFacebookUrl method
FieldValidator<String?, String?>
isFacebookUrl({
- MessageCallBack<
String> ? message, - String? name,
- String? id,
Check string is facebook url
Implementation
FieldValidator<String?, String?> isFacebookUrl({
MessageCallBack<String>? message,
String? name,
String? id,
}) {
return next((messages, value) {
if (value != null &&
!value.isFacebookUrl(
name: name,
id: id,
)) {
return message?.call(messages, value) ??
messages.invalidFacebookUrl(
name ?? 'empty',
id ?? 'empty',
);
}
return null;
});
}