What's the fastest way in Ruby to get the first enumerable element for which a block returns true?
Several core ruby classes, including Array and Hash include the Enumerable module which provides many useful methods to work with these enumerations.
This module provides the find or detect methods which do exactly what you want to achieve:
arr = [12, 88, 107, 500]arr.find { |num| num > 100 } # => 107Both method names are synonyms to each other and do exactly the same.
I remember this using by thinking of ActiveRecord.find, which gets you the first record and ActiveRecord.select, which you use when you're getting all of them.
Not a perfect comparison but might be enough to help remember.