startsWith method
check if the value starts with pattern
Implementation
FieldValidator<String?, String?> startsWith(Pattern pattern,
[MessageCallBack<String>? message]) {
return startsWithFn(() => pattern, message);
}
check if the value starts with pattern
FieldValidator<String?, String?> startsWith(Pattern pattern,
[MessageCallBack<String>? message]) {
return startsWithFn(() => pattern, message);
}