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3,471 PointsMake sure you return the result of applying the function argument on self
that's not what Im doing for sure
// Enter your code below
extension String {
func transform((String) -> String) -> String {
return self
}
}
1 Answer
Caleb Kleveter
Treehouse Moderator 37,862 PointsFirst off, it looks like you missed the parameter label for the method's closure parameter.
About your question on applying the closure to self
. To apply a method or function to a variable means to pass the variable into the method/function as a parameter. For example, when you use the print
function, you are applying that function to whatever you print with it:
print("Hello World")
// Applying `print` to the string, "Hello World"