May 13, 2017 by Daniel P. Clark

Don’t Use Objects as Hash Keys in Ruby*

Hashes have been optimized for symbols and strings in Ruby which technically are objects but this article is for revealing how much of a difference this makes when using other objects as hash keys.  There are some cases where this makes a big difference but many times you won’t notice much of a difference. I…

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March 12, 2015 by Daniel P. Clark

Substitution with Regex Groupings

As I continue to grow in experience I was looking into how I might do some in-place substitution that I had been accustomed to performing with array matching (split-map-join).  What I’m referring to isn’t just a letter for letter substitution, but something that would find a match and modify it.  For example; if I wanted…

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