Haml .each Function For Variables

I have around 30+ variables that contain an array with multiple strings inside of it. 1 variable = 1 array. I want to know if it is possible to create a new variable that will con

Solution 1:

Don't create piles of otherwise unrelated variables. Always try and think about your Ruby code in terms of manipulating structures:

- @data = { a: ["a","b","c","d","d"], b: ["a","b","c","c","d"], c: ["a","b","c","d"] }

Then define a method that takes that array and returns the broken out unique and and de-duplicated data:

def dedup_uniq(array)
  {
    uniq: array.uniq,
    dup: array.each_with_object(Hash.new(0)) { |e,h| h[e] += 1 }.select { |k,v| v > 1 }.keys
  }
end

Then processing this is easy, you just iterate:

- @data = @data.map { |k, d| [ k, dedup_uniq(d) ] }.to_h

Then you have the structure you want:

- @data.each do|k, d|
  %ul.list-inline
    - d[:uniq].each do|x|
    %li            
      %i{:class=>"fas fa-#{x} fa-2x"}
      %span.f6 #{x}                      
  - d[:dup].each do|x|
    %li            
      %i{:class=>"fas fa-#{x} fa-2x"}
      %span.f6 #{x}