ruby warnings work pretty well http://davybrion.com/blog/2010/08/compilerinterpreter-warnings-are-important-learning-opportunities/ http://davybrion.com/blog/2

ruby warnings work pretty well http://davybrion.com/blog/2010/08/compilerinterpreter-warnings-are-important-learning-opportunities/ http://davybrion.com/blog/2010/08/compilerinterpreter-warnin...