isValidEmail method

bool isValidEmail({
  1. String? regex,
})

isValidEmail(string regex): checks if the string is a valid email address

regex: optional parameter, if not specified, the default regex is used

default regex: r'^\w-+(.\w-+)@a-zA-Z\d-+(.a-zA-Z\d-+).a-zA-Z{2,}$'

Implementation

bool isValidEmail({String? regex}) {
  if (regex.isNull) {
    regex =
        r'^[\w-]+(\.[\w-]+)*@[a-zA-Z\d-]+(\.[a-zA-Z\d-]+)*\.[a-zA-Z]{2,}$';
  }
  return isNull ? false : RegExp(regex!).hasMatch(this!);
}