Educational-Initiatives-Assignment (To-Do List Manager)

This is a simple To-Do List Manager implemented in JavaScript, featuring functionalities like adding tasks, marking them as completed, deleting tasks, and viewing tasks with optional filtering.

Functionalities

1. Add Task: Users can add new tasks with a description and an optional due date.
2. Mark Completed: Tasks can be marked as 'completed'.
3. Delete Task: Users have the option to delete tasks.
4. View Tasks: Tasks can be viewed all at once or filtered by their completion status.

Design Patterns Used

1. Memento Pattern: Used to implement undo and redo functionalities for task modifications.
2. Builder Pattern: Utilized for constructing tasks with optional attributes like due date.

Usage

1. Clone the repository:

   git clone https://github.com/PrityRastogi16/Educational-Initiatives-Assignment.git

2. Run the JavaScript file:

   node todolist-manager.js

Example

// Example usage
const toDoList = new ToDoList();
const taskBuilder = new TaskBuilder();

// Adding tasks
toDoList.addTask(taskBuilder.withDescription("Buy groceries").withDueDate("2023-09-20").build());
toDoList.addTask(taskBuilder.withDescription("Finish project").build());

// Deleting a task
toDoList.deleteTask("Buy groceries");

// Undo the deletion
toDoList.undo();

// Marking a task as completed
toDoList.markTaskCompleted("Finish project");

// Viewing pending tasks
toDoList.viewTasks('pending');

// Viewing completed tasks
toDoList.viewTasks('completed');