# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2018-10-16 19:47:20 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/1052284880225062912) RT @johnsundell: It's cool that you can easily assign a closure as a custom NSException handler 👍 This is super useful when building things…