Question

while(i < bArray.length)
  if(aArray.include?(bArray[i]) == false) then
    return false
  end
  i+=1
end

I’ve written the above but I find it to be ugly and bloated. There must be a clean cut way to do this in a single statement.. but how?

Answer 1

This should be equivalent:

while i < bArray.length
  return false unless aArray.include?(bArray[i])

  i += 1
end

Here’s a one-liner that I think should be equivalent:

bArray.all? { |item| aArray.include?(item) }