From: grady@... (Steven Grady)
Date: 2000-12-08T10:10:06+09:00
Subject: [ruby-talk:6921] Is there any way to undefine a variable?

I ask because Rational checks whether Unify is defined.  I
can make it defined easily enough:
    Unify = 1
    defined? Unify	# -> "constant"
but I can't figure out how to undefine it:
    undef Unify		# -> NameError: undefined method 'Unify' for class
			# 'Object'

This error is not surprising, since the documentation says that undef
cancels "the method definition" -- it doesn't say anything about variable
bindings.  But the question remains: how do I undefine Unify after I've
defined it?
--
	Steven
"`The glorious sunset of my heart was fading.  Soon the Super Karate
Monkey Death Car would park in my space.'"