Ruby Partition Methods

One cool way to chop through a Ruby string is the partition String method. This uses regex to search for a match in a string. If it finds one, it returns what came before the match, the match, and what came after as elements in an array.

2.2.2 :001 > 'foo bar baz bat'.partition 'bar'
 => ["foo ", "bar", " baz bat"]

This is not to be confused with the partition Array method, which takes a block. Any elements that evaluate true are returned first, followed by the elements that evaluate false.

2.2.2 :002 > [1,2,3,4,5].partition(&:even?)
 => [[2, 4], [1, 3, 5]]