As explained in the docs, you can reference an existing function by prepending the & sigil: &say # reference to the `say` function &infix:<+> # reference to the infix `+` operator...

Is it possible to get a function reference to a function which has default parameters, specified as the parameterless call? InputStream.buffered() is an extension method which transforms an InputS...

In Java we have the Class::new syntax for constructor references. I know, there are callable references for methods, but how about constructors? A typical use case for me would be factories.