Building a Complete Frontend Application

Now it is time to combine the main skills from this course into one complete Svelte application. This project brings together components, props, state, forms, validation, responsive layouts, and clean project organization.

The goal is not to build something huge. The goal is to create a small but complete frontend application that feels realistic.

Project Idea

For the final project, you can build a simple Task Manager App. Users should be able to add tasks, mark them as completed, filter tasks by status, and see the layout adapt to different screen sizes.

This project is a good fit because it uses the most important Svelte concepts without becoming too complex.

Core Features

The application should include:

• A form for adding new tasks;
• Basic validation for empty task names;
• A task list rendered with {#each};
• Conditional content for empty states;
• Buttons for completing or removing tasks;
• A simple filter for all, active, and completed tasks;
• Responsive layout styles.

Suggested Project Structure

A clean beginner-friendly structure could look like this:

src/
  components/
    TaskForm.svelte
    TaskList.svelte
    TaskItem.svelte
    TaskFilter.svelte
  App.svelte
  main.js

Each component should have one clear responsibility. TaskForm.svelte handles new task input, TaskList.svelte renders the task collection, TaskItem.svelte displays one task, and TaskFilter.svelte controls which tasks are visible.

Building the Main State

In App.svelte, the main application state can store tasks and the current filter.

<script>
  import TaskForm from './components/TaskForm.svelte';
  import TaskList from './components/TaskList.svelte';
  import TaskFilter from './components/TaskFilter.svelte';

  let tasks = [];
  let filter = 'all';

  $: filteredTasks = tasks.filter((task) => {
    if (filter === 'active') return !task.completed;
    if (filter === 'completed') return task.completed;

    return true;
  });
</script>

This gives the application one central place for managing the main data.

Completing the Application

After the main state is ready, connect the form, list, and filters together through props and events. The finished app should feel like a real frontend project, even if it stays small.

Students should focus on making the application clear, usable, and easy to extend later.