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A developer notebook on applying classic Object-Oriented principles to Ruby on Rails projects.
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Tag Archives: confidence
Do, or do not. There is no #try.
One of the ways you know you are working in a good language is that it makes bad habits ugly. To wit: # params[:foo] might be missing value = params[:foo].try(:[], :bar) This is not pretty. It is, as my dad … Continue reading
Confident Code at B’More on Rails
Here’s video of the talk I did at B’More on Rails January 12, 2010. If I seem nervous, it’s because it’s the first time I’ve done something like this. The two things I will try to remember for future talks … Continue reading
Assertive Code
Trust, but verify Self-confident code does not ask questions about the data given to it. It enforces validity, asserts that its expectations are met, or ignores data which isn’t up to its standards. Previously we’ve looked at some methods for … Continue reading
Array-ifying Values
I can’t remember if I’ve written about this before. On the assumption that I haven’t, I’ll forge ahead. As I’ve mentioned in the past I hate null checks. They clutter up code and add nothing meaningful to the code’s narrative. … Continue reading
Writing Self-Confident Code
A common idiom in ruby is to call a method only if its receiver is not nil: thing.foo if thing or: thing && thing.foo Various libraries exist for making this a little more convenient. You can use andand, or if … Continue reading
