I'm trying to create a function that has a closure. Nothing is passed to the function, just after it finishes another function has to be called. Something like this:
func addGradient(closure: syntax) {
(closure: _ in ("function call here") )}
so it can be called similiar to this
addGradient(closure: "function to be called")
Just use the signature for the function minus any of the names:
func doIt(one: Int, two: String) -> [String] {
…
}
Would have the closure signature of:
(Int, String) -> [String]
So yours would be:
func addGradient(closure: (Int, String) -> [String]) {
…
}
And you can call it like this:
addGradient(closure: doIt)
One more note, a function like this:
func doAgain() {
…
}
Has a closure signature of this:
() -> ()