flutter text form field email validation
String validateEmail(String value) {
Pattern pattern =
r"^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]"
r"{0,253}[a-zA-Z0-9])?(?:.[a-zA-Z0-9](?:[a-zA-Z0-9-]"
r"{0,253}[a-zA-Z0-9])?)*$";
RegExp regex = new RegExp(pattern);
if (!regex.hasMatch(value) || value == null)
return 'Enter a valid email address';
else
return null;
}email validation regex in flutter
var email = "[email protected]"
bool emailValid = RegExp(r"^[a-zA-Z0-9.a-zA-Z0-9.!#$%&'*+-/=?^_`{|}~]+@[a-zA-Z0-9]+.[a-zA-Z]+").hasMatch(email);flutter check email format
^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,253}[a-zA-Z0-9])?(?:.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,253}[a-zA-Z0-9])?)*$Copyright © 2021 Codeinu
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