email static method

String? email(
  1. String? v
)

Implementation

static String? email(String? v) {
  if (v == null || v.isEmpty) return 'Required';
  final re = RegExp(r'^[\w\.\-]+@[\w\-]+\.[A-Za-z]{2,}$');
  return re.hasMatch(v) ? null : 'Invalid email';
}