I am using ghcjs-dom. How can I filter the elements out of an array of nodes?
import GHCJS.DOM.Types
nodesToElements :: [Node] -> [Element]
nodesToElements = ??
or
nodesToElements :: [Node] -> IO [Element]
nodesToElements = ??
import GHCJS.DOM.Types
import Data.Maybe (mapMaybe)
nodeToElement :: Node -> Maybe Element
nodeToElement node = if node `isA` gTypeElement
then Just $ castToElement node
else Nothing
nodesToElements :: [Node] -> [Element]
nodesToElements = mapMaybe nodeToElement