Ruby Array find_first object?

Either I don't understand your question, or Enumerable#find is the thing you were looking for.

use array detect method if you wanted to return first value where block returns true

[1,2,3,11,34].detect(&:even?) #=> 2OR[1,2,3,11,34].detect{|i| i.even?} #=> 2

If you wanted to return all values where block returns true then use select

[1,2,3,11,34].select(&:even?)  #=> [2, 34]

ruby arrays performance find

Guess you just missed the find method in the docs:

my_array.find {|e| e.satisfies_condition? }

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