Question

I have a method that uses transpose, but I do not want to apply this operation if the array has less than 2 dimensions. I am wondering how I can do this in ruby.

so for an array like [1,2] -> it should say 1D

and for an array like [[1,2],[1,2]] it should say 2D

Any help appreciated,

Ted

Answer 1

You could find it recursively:

def getDimension(array)
  if array.first.is_a?(Array)
    1 + getDimension(array.first)
  else
    1
  end
end

I know it is a bit crude and there probably someone who is able to make it much nicer, but the general idea is clear.