Ruby >

Force a pause ∞

This will not work as expected when a script is run with arguments.

puts "<PAUSED>"
pause=gets

Any arguments are collected into an array called ARGV, and if there is anything in that array then gets will think of these arguments as files for it to read from. This is clearly not what we want.

The solution is simple. Clear the ARGV array so that gets always reads from the commandline.

puts "<PAUSED>"
ARGV.clear
pause=gets

Also, if you don't want to create the variable "pause", you could have ARGV and gets work together directly, like this:

puts "<PAUSED>"
ARGV.clear
ARGV << gets

Issues with nil ∞

Having stupid problems with nil not acting like "0"? Well, you could redefine what it is:

class NilClass
  def []
    nil #or whatever you want returned
  end
end