Ruby 1.9 hash with a dash in a key

Question

In ruby 1.9 is there a way to define this hash with the new syntax?

irb> { a:  2 }
=> {:a=>2}

irb> { a-b:  2 }
SyntaxError: (irb):5: syntax erro         


        

Answer 1

You can combine the old and new syntax:

{a: 1, b: 2, :'c-c' => 3, d: 4}