emailValidator function

String? emailValidator(
  1. String? value,
  2. String invalidMessage,
  3. bool toastIfInvalid
)

Implementation

String? emailValidator(String? value, String invalidMessage, bool toastIfInvalid) {
  var validatedValue = value == null || value.isEmpty ? invalidMessage : VALID;
  if (validatedValue != null && toastIfInvalid) showToast(invalidMessage);
  return validatedValue;
}