gistfile1.txt

Nice ways to construct Lists, Arrays, Maps and Hashes.
Is this as nice as it gets?

Without assignment (mostly passed or returned to/from functions):

            |        mutable         |           immutable
------------|------------------------|--------------------------------
Positional  | ['a', 1, 'b', 2]       | ('a', 1, 'b', 2)
Associative | %(a=>1, b=>2)          | Map.new((a=>1, b=>2))


With assignment:

            |        mutable         |           immutable
------------|------------------------|--------------------------------
Positional  | my @x = 'a', 1, 'b', 2 | my @x := 'a', 1, 'b', 2
Associative | my %x = a=>1, b=>2     | my %x := Map.new((a=>1, b=>2))