How to use Type aliases In Typescript

This TypeScript code defines a type named RecursiveTreeNode<T>, representing a tree node with a value of type T and an optional array of child nodes of the same type.

It then creates a tree structure using this type, where each node holds a string value. Finally, it logs the tree to the console.

Syntax:

type TreeNode<T> = {
    value: T;
    children: TreeNode<T>[];
};

Example: TypeScript recursive tree structure with string values: Using type alias to define `RecursiveTreeNode<T>` and creating a hierarchical tree object.

Output:

[LOG]: {
  "value": "root",
  "children": [
    {
      "value": "child1",
      "children": [
        {
          "value": "grandchild1"
        }
      ]
    },
    {
      "value": "child2"
    }
  ]
}

In TypeScript, Recursive generics let you use generic types that refer to themselves inside their definition. This is helpful when we are working with nested or hierarchical Data Structures or Algorithms. Using this we can create flexible and reusable code for managing complex Data Structures. There are several approaches to implementing recursive generics in TypeScript which are as follows: