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Hi! I'm Avdi Grimm, and this is my software development blog. More...
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Objects on Rails
A developer notebook on applying classic Object-Oriented principles to Ruby on Rails projects.
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Monthly Archives: March 2012
Generating cows with IO.popen()
I find the subject of starting and interacting with other OS processes fascinating. A few years ago I wrote a never-completed series on the many ways to spawn off processes in Ruby: Part 1: Backticks and system() Part 2: Opening … Continue reading
Unless readable else confused
An exploration of why unless…else in Ruby is problematic at best. Continue reading
Now Available: Objects on Rails
Announcing the immediate availability of Objects on Rails. Free to read online, $5 to download! Continue reading
Posted in Announcements, Books
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Undoing and redoing changes to Emacs window layouts (Emacs Reboot #17)
It’s frustrating when you have your buffers laid out just so, and then some command messes them up. In this episode I enable winner-mode, which keeps a ring buffer of window configurations so you can undo and redo changes to … Continue reading




