Using ActiveRecord to query for times within a range tmblr.co/ZmLjSyKnk0DJ
Creating regular expressions with r{} literals tmblr.co/ZmLjSyJvobLd
Create a hash from an array with Hash[*arr] tmblr.co/ZmLjSyJp4Ey3
Rails' index_by: the easy way to convert an Array to a Hash tmblr.co/ZmLjSyJXILEA
Convert a number string in any base to a decimal number tmblr.co/ZmLjSyJTk_UP
Two Ruby tricks using method chaining and Procs tmblr.co/ZmLjSyJ3QEAM
Using Hash as Recursive Function with Memoization tmblr.co/ZmLjSyINSeV9
Some Array magic using transpose, map and reduce tmblr.co/ZmLjSyHZ5kXM
Quick shortcut to load a SQL file in Rails tmblr.co/ZmLjSyHGzgEL
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