prabirshrestha

@synthesize firstName = _firstName;
@synthesize txtFirstName = _txtFirstName;

[RACAbleSelf(self.firstName) subscribeNext:^(id x) { [self firstNameChanged:x]; }];
[self rac_bind:RAC_KEYPATH_SELF(self.firstName) to:self.txtFirstName.rac_textSubscribable];

- (void) firstNameChanged:(id)firstName {
    NSLog(@"changed: %@", firstName);
}

jmoody

def navbar_visible?
  !query('navigationBar').empty?
end

def navbar_has_back_button?
  !query("navigationItemButtonView").empty?
end

def navbar_should_have_back_button
  unless navbar_has_back_button?