emailValidatorNullable static method

String? emailValidatorNullable(
  1. String? value
)

Implementation

static String? emailValidatorNullable(String? value) {
  final email = (value ?? "").trim().toLowerCase();
  if (email.isEmpty) {
    return null;
  }
  if (!email.isEmailValid) {
    return "Enter a valid email address";
  }
  return null;
}