📝 Enhanced ToDo List Application Project Description This project is a task management web application (ToDo List) developed with React and TypeScript. It serves as a solid foundation for mastering React fundamentals, including state management, multi-page navigation (routing), and interaction with the browser's local storage.

The application simulates a complete environment with:

Simple user authentication.

Protected navigation.

Full CRUD operations on tasks (Create, Read, Update, Delete).

A modern design based on a Blue/Green/White color palette.

🚀 Key Features This project integrates several functional and User Experience (UX) improvements:

Feature,Description

Add Task,Creates a new task with text.

Edit Task,Allows modification of both the text and the completion status of an existing task.

Delete Task,Removes a task from the list.

State Toggle,"Marks a task as ""Active"" or ""Completed"" via a checkbox.

Completion Option,"Allows specifying a task as ""completed"" directly upon creation through the form.

User Experience and State Management Task Persistence: Tasks are stored in the browser's localStorage. They are not lost when the user refreshes the application.

Dynamic Filters: Allows filtering the displayed task list by three states: All, Active, or Completed.

Task Counters: Displays the total number of tasks in real-time, as well as the count for active and completed tasks.

Quick Clean-up: A "Clear Completed" button that allows deleting all finished tasks in a single click.

Security and Navigation Simple Authentication (Mock): Managed by a local state (isLoggedIn and username). The user must log in to access the task list.

Protected Navigation: Uses React Router and components to redirect unauthenticated users to the login page (/login).

Authentication Persistence: The user's login status is stored in localStorage, allowing them to remain logged in even after refreshing the browser page.

🧱 Project Architecture The project is organized following a classic modular React structure:

src/ ├── components/ │ ├── Nav.tsx # Navigation bar (handles Login/Logout) │ ├── Home.tsx # Simple home page │ ├── Login.tsx # Login form │ ├── TodoList.tsx # Main container, manages state (CRUD, filters, localStorage) │ ├── TodoForm.tsx # Reusable form (Add / Edit) │ └── TodoItem.tsx # Individual task display ├── App.tsx # Main component, manages global state (Auth) and routes ├── index.tsx # Application entry point ├── index.css # Global styles (Blue/Green/White palette) └── setupTests.ts # Test configuration (for Jest/TypeScript)

💻 Technologies Used React (with Hooks: useState, useEffect, useMemo)

TypeScript (for strict typing of props and state)

React Router DOM (for navigation)

Native CSS (for styling)

⚙️ Installation and Startup Follow these steps to run the project locally.

Prerequisites Node.js and npm/yarn installed.

Steps Clone the repository (or create the folder):

Bash

git clone [PROJECT_URL] cd enhanced-todo-list

If you created the project manually, you are already in the directory.

Install dependencies:

Bash

npm install

or

yarn install Start the application:

Bash

npm start

or

yarn start The application will be accessible in your browser at: http://localhost:3000.