Okay, I am trying to clarify the use of nil in Ruby.
When you set a variable to nil, Ruby seems to make the variable a nil
Now, is there a way to actually delete the variable from memory?
Something similar to the difference in Perl from doing:
$test = undef; #equivalent to ruby's test=nil
undef $test; #this removes test from namespace. how to in
Also, is there any simple construct to find if a variable is defined?
In Perl, there exists the function called "defined" that will return
true or false based on whether the variable is ...