Ruby find and return objects in an array based on an attribute

Question

How can you iterate through an array of objects and return the entire object if a certain attribute is correct?

I have the following in my rails app

array_of_objects.each { |favor| favor.completed == false }

array_of_objects.each { |favor| favor.completed }

but for some reason these two return the same result! I have tried to replace each with collect, map, keep_if as well as !favor.completed instead of favor.completed == false and none of them worked!

Any help is highly appreciated!

Answer 1

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.

Answer 2

For first case,

array_of_objects.reject(&:completed)

For second case,

array_of_objects.select(&:completed)

Answer 3

You need to use Enumerable#find_all to get the all matched objects.

array_of_objects.find_all { |favor| favor.completed == false }