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Daniel Berger

Posts: 1383
Nickname: djberg96
Registered: Sep, 2004

Daniel Berger is a Ruby Programmer who also dabbles in C and Perl
Ignoring errors Posted: May 5, 2005 1:50 PM
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This post originated from an RSS feed registered with Ruby Buzz by Daniel Berger.
Original Post: Ignoring errors
Feed Title: Testing 1,2,3...
Feed URL: http://djberg96.livejournal.com/data/rss
Feed Description: A blog on Ruby and other stuff.
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If you want to create a directory in Ruby you do this:
Dir.mkdir("foo")

What if "foo" already exists? An error occurs. You could resort to this:
Dir.mkdir("foo") unless File.exists?("foo")

That's rather longwinded. Since 99.9% of the time the only reason for Dir.mkdir to fail is that the directory already exists wouldn't it be nice to just ignore this error? Yup:
Dir.mkdir("foo") rescue nil

Read: Ignoring errors

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