How do I call a method that is a hash value?

Question

Previously, I asked about a clever way to execute a method on a given condition \"Ruby a clever way to execute a function on a condition.\"

The solutions and respons

Answer 1

that code doesn't work. it executes a at the time it is added to the hash, not when it is retrieved from the hash (try it in irb).

It doesn't work in the class because there is no a method defined on the class (you eventually define a method a on the instance.

Try actually using lambdas like

{0 => lambda { puts "hello world" }} 

instead