validateEmail method

String? validateEmail(
  1. String? value
)

Implementation

String? validateEmail(String? value) {
  Pattern pattern =
      r'^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$';
  RegExp regex = RegExp(pattern.toString());
  if (!regex.hasMatch(value!)) {
    return 'Enter a valid Email Address';
  } else {
    return null;
  }
}