hamidp

package com.trello.core.rx;

import rx.Observable;
import rx.Subscriber;

/**
 * Passes control to another Observable if the source observable does not emit any items.
 *
 * Handy if you've a CacheObservable that does a cheap lookup and a DoHardWorkObservable that does the
 * hard work and you want to only do the hard work if CacheObservable is empty.

hamidp

def method_missing(sym, *args)
  if(sym.to_s == "pl")
    send(args[0], self)
  end
end

def square ar
  ar.map! { |i| i * i }
end