Ruby on Rails - find how many groups each_slice has "generated" -

i using each_slice group records inside different divs. how can find out how many div/groups, each_slice has generated , add group number inside each div.

example

array = ["a", "b", "c", "d"]  - array.each_slice(2)  **result =>**  %div.main-div  %h1 div 1  %div   %h1  %div   %h1 b   %div.main-div  %h1 div 2  %div   %h1 c  %div   %h1 d  

something this

slicer = array.each_slice(2) groups = slicer.count slicer.with_index {|a, i| p "#{i + 1}: #{a}" }