Even and Odd Integers

[stephencelis]

@Ben_Cohen

sample code using isEven as an example of a function being passed to a higher-order function like filter . Makes sense – it's my go-to example function to use for these purposes too! (But defining it as a property would be unsatisfactory for these purposes since I usually want to use it point-free :)

Key paths make it easy to be point-free . We just need a get function, an equivalent prefix ^, or some first-class promotion, if anyone wants to help me with an implementation .

xs.filter(\.isEven)