email static method
Validatorless.email('Value is not email')
Implementation
static FormFieldValidator<String> email(String m) {
return (v) {
if (v?.isEmpty ?? true) return null;
final emailRegex = RegExp(
r"[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?");
if (emailRegex.hasMatch(v!)) return null;
return m;
};
}