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email address validation in objective c

/ Published in: Objective C
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  1. - (BOOL) validateEmail: (NSString *) emailstring {
  2.     NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
  3.     NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
  4.  
  5.     return [emailTest evaluateWithObject:emailstring];
  6. }

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