lib/anybase.rb in anybase-0.0.8 vs lib/anybase.rb in anybase-0.0.9

@@ -19,9 +19,13 @@
 
   def ignore_case?
     @ignore_case
   end
   
+  def size(digits)
+    chars.length ** digits
+  end
+  
   def random(digits, opts = nil)
     zero_pad = opts && opts.key?(:zero_pad) ? opts[:zero_pad] : true
     number = ''
     digits.times { number << chars[rand(chars.size)]}
     unless zero_pad