# File lib/stringex/string_extensions.rb, line 219
219:       def random(limit)
220:         strong_alphanumerics = %w{
221:           a b c d e f g h i j k l m n o p q r s t u v w x y z
222:           A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
223:           1 2 3 4 5 6 7 8 9
224:         }
225:         Array.new(limit, "").collect{strong_alphanumerics[rand(61)]}.join
226:       end