The constructor function initializes an object with a key and an optional value in TypeScript.
The key
parameter in the constructor function is used to store the key value
for the key-value pair.
Optional
value: VThe value
parameter in the constructor is optional, meaning it does not
have to be provided when creating an instance of the class. If a value
is not provided, it will
default to undefined
.
Represents a node in a binary tree.
Template: BinaryTreeNode<K,
V> - The type of the family relationship in the binary tree.