ruby_binding_tryout

> binding
#<Binding:0x0000000140aa28>

> binding.class
=> Binding

> respond_to? :binding
false

> defined? binding
"method"

> Object.binding
NoMethodError: private method `binding' called for Object:Class

var_scope.rb

msg = "hello"

def say
   puts msg
end

say
# throws NameError since msg is not in scope

var_scope2.rb

msg = "hello"

def say(scope)
   eval "puts msg", scope
end

say(binding)
# prints hello