Quiz 3 — Calling multi-functions

Here are the three variants of the function.

multi sub func(Int $a) { 1 }
multi sub func(Rat $a) { 2 }
multi sub func(Num $a) { 3 }

Which calls are valid?

		func(4)
		func(4e4)
		func(4/4)
		func('4')	There is no `multi sub func(Str $a`).
		func(4.4)

What do the calls return?

1	`func(4)` returns
2	`func(4.4)` returns	`4.4` is a `Rat`.
2	`func(4/4)` returns	`4/4` is also a `Rat` number.
3	`func(4e4)` returns	A number in scientific notation is `Num`.

Course navigation