anknetau

NSString* result = [string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];

anknetau

UIViewController *vc = self.childViewControllers[3]; // or whatever
[vc willMoveToParentViewController:nil];
[vc.view removeFromSuperview];
[vc removeFromParentViewController];

anknetau

UIViewController* controller = [self.storyboard instantiateViewControllerWithIdentifier:@"identifier"]; // or whatever
[self addChildViewController:controller];
controller.view.frame = CGRectMake(0, 0, 100, 100); // or whatever
[self.view addSubview:controller.view];
[controller didMoveToParentViewController:self];

anknetau

### Keybase proof

I hereby claim:

  * I am anknetau on github.
  * I am ank (https://keybase.io/ank) on keybase.
  * I have a public key whose fingerprint is 9534 E157 8B32 46F0 9C8F  8B2F 4EBE 7B2D 30EA E859

To claim this, I am signing this object: