Set the value of a local variable.
binding["a"] = 4 a #=> 4
@deprecated No longer wortks in Ruby 1.9+.
@see Binding#with for an alternative.
Allows the evaluation of blocks by a Binding in the same way that strings can be evaluated.
x = 5 $my_binding = binding class Test # just here to provide a scope gate $my_binding.block_exec { x } end # => 5
NOTE: The implementation of this method uses a method_missing trick.
Consequently it is a bit of a hack.