Comments (2)
I'm not sure I understand your question:
so what function does return x+y belongs to
The add3
function takes two arguments. It needs to be called as add3(1)(2)
. We can also write add(1)
, which returns a function of type Int -> Int
. Can you try to rephrase your question perhaps?
from functional-swift.
Maybe it helps to rewrite the function. The curried version looks like this:
func add3(x: Int)(y: Int) -> Int {
return x + y
}
And this is really syntactic sugar for the following function:
func add3(x: Int) -> Int -> Int {
return { (y: Int) in
return x + y
}
}
Now it should be a bit easier to see where the return
belongs to...
from functional-swift.
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from functional-swift.