Here is another strategy that came to mind. Instead of returning a value
that is sometimes invisible, you could have a modifier that sometimes
performs a no-op:
appendWhen : Bool -> Node -> List Node -> List Node
appendWhen condition node nodes =
if condition then
nodes ++ [node]
else
nodes
On Mon, May 16, 2016 at 5:26 PM, Max Goldstein <[email protected]>
wrote:
> Perhaps use List.filterMap to drop Nothing? But all of the nonconditional
> nodes must be prefaced with Just <| which is annoying.
>
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