"flutter text form field email validation" Code Answer's
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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;
}
Source: stackoverflow.com
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