isValidPhoneNumber function

bool isValidPhoneNumber(
  1. String s
)

Implementation

bool isValidPhoneNumber(String s) {
  if (s.length > 13 || s.length < 6) return false;
  return hasMatch(s, r'^[+]*[(]{0,1}[0-9]{1,4}[)]{0,1}[-\s\./0-9]*$');
}