Build a Simple Todo CLI (JSON Storage)

Node.js

Technical Specification

Create a todo CLI where you can add and list todos stored in a JSON file.

Input/Output Samples

Input:node todo.js add "Learn Node"

Output:Added: Learn Node

Input:node todo.js list

Output:1. Learn Node

Optimal Logic Path

// pseudo-code structure
// 1) load todos.json or default []
// 2) if cmd === "add" => push new todo, save
// 3) if cmd === "list" => print all

Architectural Deep-Dive

A small CLI showcases reading argv, manipulating JSON, and persisting simple data.