To invert a binary tree in JavaScript and display an ASCII representation of the tree before and after the inversion, follow these steps:
- Define a Tree Node Class: Create a class to represent each node of the binary tree, containing
val,left, andrightproperties. - Invert the Binary Tree: Use a recursive approach to swap the left and right children of each node. This is done by traversing the tree and swapping the children of each node.
- Generate ASCII Tree Representation: Implement a function to convert the tree into a string representation that visually shows the structure, including node values and their positions. This function uses level-order traversal (breadth-first search) to handle varying node depths and spaces.
- Display Results: Print the original and inverted tree's ASCII representations.