Ruby find and return objects in an array based on an attribute
array_of_objects.select { |favor| favor.completed == false }Will return all the objects that's completed is false.
You can also use find_all instead of select.
For first case,
array_of_objects.reject(&:completed)For second case,
array_of_objects.select(&:completed)
You need to use Enumerable#find_all to get the all matched objects.
array_of_objects.find_all { |favor| favor.completed == false }