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

a = ->(string="No string passed") do

puts string

end

some_hash = { 0 => a }

some_hash[0].call("Hello World")

some_hash[0][]