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From: Rich Lane <rlane@club.cc.cmu.edu>
To: Edward Z. Yang <ezyang@mit.edu>
In-reply-to: <1268196562-sup-1692@ezyang>
References: <1268196562-sup-1692@ezyang>
Date: Wed, 10 Mar 2010 12:24:12 -0500
Message-Id: <1268241639-sup-9685@zyrg.net>
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Cc: sup-devel <sup-devel@rubyforge.org>
Subject: Re: [sup-devel] Mysterious nil errors
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Excerpts from Edward Z. Yang's message of 2010-03-09 23:50:23 -0500:
> -        content_type = (m.header.content_type || "application/unknown").downcase # sometimes RubyMail gives us nil
> +        content_type = (m.header["content_type"] && m.header.content_type || "application/unknown").downcase # sometimes RubyMail gives us nil

Could you explain why these changes help? What's the return value of the
[] call versus the method call?
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