Elm vs Ember.js: What are the differences?

## Introduction

Key differences between Elm and Ember.js are outlined below.

1. **Language Type**: Elm is a functional language that compiles to JavaScript, while Ember.js is a JavaScript framework for building web applications.
2. **Error Handling**: Elm enforces strong typing and immutability, leading to fewer run-time errors compared to Ember.js, which relies on traditional JavaScript error handling.
3. **Architecture**: Elm follows the Model-View-Update architecture, which guarantees a predictable flow of data, whereas Ember.js uses the Model-View-Controller pattern with two-way data binding.
4. **Learning Curve**: Elm's learning curve can be steeper for beginners due to its strong functional programming paradigm, whereas Ember.js offers a more gradual learning curve as it is built on familiar JavaScript concepts.
5. **Community Support**: Elm has a smaller but dedicated community that focuses on maintaining a robust ecosystem and supporting best practices, while Ember.js has a larger community with more resources and plugins available.
6. **Size and Performance**: Due to its immutability and pure functions, Elm tends to have smaller bundle sizes and better performance compared to Ember.js, which may have larger bundle sizes and slightly slower performance.

In Summary, Elm and Ember.js differ in language type, error handling, architecture, learning curve, community support, and size/performance.