From: Carl Jenkins <carljenkins@...>
Date: 2010-07-19T04:56:34+09:00
Subject: Null checks in Ruby

I am working to learning Ruby and have a bit of a question regarding
program structure.

In Java we typically checked (at the beginning of a method) for null and
that the parameters being passed in are of a certain value.

Maybe I am still (very) new to this world but, are null checks done a
lot in the real world with Ruby?

For example, I have seen a lot of code doing something like

if(obj == null){
  log.error(...);
   throw new SomeException(errMsg);
}

if(obj2 == null){
  log.error(...);
   throw new SomeException(errMsg);
}

Does this happen in Ruby programs as well?
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