isEmail function
checks if is valid email or not
it takes email
of type string to validate
it return true if valid otherwise it return false
isEmail("muhammed@yahoo.com") == true
isEmail("muhammedYahoo.com") == false
isEmail("muhammed@yahoo.") == false
Implementation
bool isEmail(String email){
final emailRegex = RegExp(
r'^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:(\.[a-zA-Z0-9-]{2,5}))*$',
);
return emailRegex.hasMatch(email);
}