Task-manager

Introduction

The Task Manager website is a powerful web application designed to help users manage their tasks efficiently. It leverages essential programming concepts such as classes, switch statements, and try-catch-finally statements to provide a seamless and error-handling-driven task management experience. In this write-up, we will delve into the details of how these concepts were integrated into the website's codebase.

Classes

At the core of the Task Manager website is the TaskManager class, which encapsulates the logic for adding and removing tasks. The class is instantiated as taskManager, allowing us to create and manage task objects with ease. Below is an overview of the class structure:

class TaskManager {
    constructor() {
        this.tasks = [];
    }

    addTask(task) {
        this.tasks.push(task);
    }

    removeTask(task) {
        const index = this.tasks.indexOf(task);
        if (index !== -1) {
            this.tasks.splice(index, 1);
        }
    }

    getTasks() {
        return this.tasks;
    }
}

The TaskManager class serves as the foundation for task management, enabling us to add, remove, and retrieve tasks efficiently.

Switch Statements

Switch statements are effectively employed to handle user interactions, specifically when removing tasks. When a user clicks the "Remove" button for a specific task, a switch-like behavior is implemented through a confirmation dialog:

// Inside the displayTasks() function
removeButton.addEventListener('click', () => {
    // Handle the remove task action using a switch-like confirmation dialog
    switch (window.confirm('Are you sure you want to remove this task?')) {
        case true:
            taskManager.removeTask(task);
            displayTasks();
            break;
        default:
            break;
    }
});

In this code snippet, a switch-like structure is utilized to confirm the user's intent before removing a task, enhancing the user experience.

Try-Catch-Finally Statements:

Error handling is a vital aspect of the Task Manager website, ensuring robustness and preventing unexpected issues. The website employs try-catch-finally statements to handle potential errors gracefully. For example, when adding a task, the following code block ensures that the task input is validated:

try {
    const taskInput = document.getElementById('task-input');
    const task = taskInput.value.trim();

    if (task === '') {
        throw new Error('Task cannot be empty.');
    }

    taskManager.addTask(task);
    taskInput.value = ''; // Clear the input field
    displayTasks();
} catch (error) {
    // Handle errors
    alert(`Error: ${error.message}`);
} finally {
    // This block will always execute
    console.log('Task operation complete.');
}

The try-catch-finally structure allows for the graceful handling of errors, providing clear feedback to users and maintaining the website's stability.

Integration into the Website:

These programming concepts are seamlessly integrated into the website's functionality. The TaskManager class forms the core of task management, while switch-like statements and try-catch-finally blocks ensure smooth user interactions and error handling.

Code Walkthrough:

The TaskManager class is instantiated at the beginning of the script, serving as the central component for task management. A switch-like structure is used to confirm task removal, ensuring user intent is verified. Try-catch-finally statements are strategically placed to validate user inputs and handle potential errors, providing informative error messages and enhancing the user experience.

Conclusion:

The Task Manager website effectively demonstrates the integration of classes, switch-like statements, and try-catch-finally statements. These programming concepts enhance the website's functionality, making it a powerful tool for managing tasks while ensuring a user-friendly and error-tolerant experience.

navdiya-nikunj / Task-manager.github.io