Reactive Cocoa example

gistfile1.m

RAC(self.sendButton, enabled) = [RACSignal
	 combineLatest:@[self.nomeTextField.rac_textSignal,self.streetTextField.rac_textSignal, self.numberTextField.rac_textSignal, self.bairroTextField.rac_textSignal, self.phoneTextField.rac_textSignal]
		reduce:^(NSString *nome, NSString *street,NSString *bairro, NSString *phone) {
		return @(nome.length > 0 && street.length > 0 && bairro.length > 0 && phone.length > 0);
	}];