How do you implement a postorder traversal algorithm in Ruby

Ruby
x
37
class Node
attr_accessor :value, :left, :right
def initialize(value)
@value = value
@left = nil
@right = nil
end
def postorder(node)
return if node.nil?
postorder(node.left)
postorder(node.right)
puts node.value
end
def preorder(node)
return if node.nil?
🤖 Code Explanation
This is a binary tree. The methods postorder, preorder, and inorder will print the value of each node in the tree in postorder, preorder, and inorder, respectively.

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