Question

Here is a code in Ruby. I’m just trying to simplify it. Do you have any ideas?

def foo
   points = some_collection.map { |item| {:key1 => item.key1, :key2 => item.key2, :key3 => item.key3, :key4=> item.key4} }

   some_collection2.each do |item2|
    points << {:key1 => item2.key1, :key2 => item2.key2, :key3 => item2.key3, :key4=> item2.key4}
   end

   points
end

Answer 1

If I understand correctly the mapping function is the same for both collections in your case.

points = (some_collection + some_collection2).map do |item|
  {:key1 => item.method1, :key2 => item.method2, :key3 => item.key4, :key5=> item.key5}
end