Let s say I am trying to remove elements from array a 1 1 1 2 2 3 If I perform the following b a - 1 3 Then I will get b 2 2 However I want the result to be b 1 1 2 2 i e I only remove one instance of each element in the subtracted vector not all cases Is there a simple way in Ruby to do this

Removing elements from array Ruby

You may do:

a= [1,1,1,2,2,3]
delete_list = [1,3]
delete_list.each do |del|
    a.delete_at(a.index(del))
end

result : [1, 1, 2, 2]

~ Answered on 2012-01-19 16:14:11