Haskell Package 지우기

하스켈을 하다보면 패키지 이름이 겹치는 경우가 있다. 그럴경우 사용하지 않는 한가지를 아래와 같이 처리한다.

ghc-pkg unregister --force 패키지이름

ex) ghc-pkg unregister --force regex-compat-0.95.1

Haskell - Not in scope: 'pure'

ghci> :t pure
<interactive>:1:1: Not in scope: ‘pure’
ghci> :m +Control.Applicative
ghci> :t pure
pure :: Applicative f => a -> f a

Blender tip #30: Changing Modifier Settings on Multiple Objects at Once

Sometimes, when you’re working on a scene that has lots of different objects with modifiers on it, you might want to change a specific modifier setting on several objects at once (like the Subdivision Surface modifier for instance). Luckily, Blender has a cool little feature that enables you to do just that.

(A) Select all the objects with the same Modifier that you want to change.

(B) Go to the modifiers panel and locate the modifier (in this case the Subdivision Surface modifier).

(C) Simply hold down the ALT key while changing any value, and the changes will be assigned to all of the other selected objects that have the same modifier.