TodoMVC
A classic TodoMVC implementation in Elm, serving as a beginner-friendly example of Elm architecture.
What is TodoMVC?
Elm TodoMVC is a reference implementation of the TodoMVC application built with the Elm programming language. It serves as a practical example demonstrating how to structure Elm applications using the Model-View-Update architecture while implementing all standard todo list functionality. The project solves the problem of providing a concrete, working example for developers learning Elm by showing real-world patterns in a familiar context.
Developers new to Elm who want to understand Elm architecture through a practical example, and experienced developers looking for reference implementations of common patterns.
Developers choose this project because it provides a clean, minimal implementation that focuses purely on Elm concepts without unnecessary complexity. It's maintained by a core Elm contributor and serves as an authoritative learning resource.
Overview
The TodoMVC app written in Elm, nice example for beginners.
Use Cases
Best For
- Learning Elm's Model-View-Update architecture
- Understanding how to structure a complete Elm application
- Seeing practical examples of Elm ports for JavaScript interop
- Comparing Elm implementations with other framework examples
- Starting point for building your own Elm todo applications
- Reference for implementing localStorage persistence in Elm
Not Ideal For
- Projects requiring complex UI interactions beyond basic CRUD operations
- Teams embedded in JavaScript ecosystems seeking drop-in components
- Applications needing advanced features like routing, authentication, or real-time updates
- Quick prototyping where Elm's compilation and type system add overhead
Pros & Cons
Pros
Demonstrates the Elm Model-View-Update pattern in a single file, making data flow and separation of concerns easy to follow for learners.
Focused on simplicity with minimal dependencies, allowing new Elm developers to grasp core concepts without unnecessary complexity.
Uses Elm ports to integrate with localStorage, providing a real-world example of managing side effects in a pure functional language.
Maintained by a core Elm contributor, ensuring it aligns with best practices and serves as a reliable learning resource.
Cons
Only implements a todo list; it doesn't cover more complex scenarios like API calls, routing, or state management beyond the basics.
Requires familiarity with Elm and its toolchain, which can be a barrier for developers not already invested in the language.
Lacks advanced CSS or pre-styled components, so developers must add their own styling for production-ready applications.
Frequently Asked Questions
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