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Say I have a model Person. The model Person has an attribute age.

If I have an array of Person-objects, how may I return a subarray containing only the Person-objects whose age-attribute is equal to, say, 20?

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  • if it is an ActiveRecord model, Person.where(:age => 20) seems like the best thing to do Commented May 27, 2014 at 17:38

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Yes use select method.

 persons.select { |person| person.age == 20 }
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