Ruby proper data structure for this implementation

Question

I would like to know of any data structure in Ruby that allows us to conveniently store pairs of numbers.

I would like to store pairs of numbers, like coordinates, in a list without regard to order.

So like [(0,0), (0,1), ... (x,y)]

If there are no data structures that will do this, what is the closest I can achieve with something else?

Thanks.

Answer 1

Another way is using Struct to define a Pair like that.

Pair = Struct.new(:x, :y) do
  def to_s
    "(#{x}, #{y})"
  end
end

Then, yon can use it as other build-in data structures. [Pair.new(0,0), Pair.new(1,1)].

If you feel the way constructing Pair is too tedious, define a helper method Pair.

def Pair(x, y)
  Pair.new(x, y)
end

At last, [Pair(0,0), Pair(1,1)]

Answer 2

You can use nested array, like this:

 array = [[0,0], [0,1], ... [x,y]]