Functional Programming in Vite with Elm | Lindsay Wardell | ViteConf 2022

Leverage Elm's functional programming language with Vite to avoid runtime errors, boost strong typing, and maintainment.

Key takeaways

Elm is a functional programming language that compiles to JavaScript, providing a statically typed and strongly typed language, allowing for fewer runtime errors and better code maintainability.
Elm’s architecture is designed to avoid runtime errors, with all state living at the top level and not allowing mutation.
Elm has a simple configuration system, and can be added to any Vite-based application using the vite-plugin-elm plugin.
Elm has a powerful compiler that guides you through the process of learning the language and writing Elm code.
Elm Test is a testing framework for Elm, allowing you to write tests in Elm for Elm code.
Elm’s type system is static and provides strong typing out of the box, with no need for additional libraries or tools.
Elm’s error messages are helpful and provide guidance on how to fix errors, unlike JavaScript where errors can be unclear and difficult to debug.
Elm can be used with existing JavaScript frameworks, but provides a more functional programming approach to building web applications.
Elm’s architecture is designed for maintainability, with each piece of data having a single source of truth.
Elm’s state is immutable, making it easy to reason about the state of the application.
Elm’s compiler is built-in and provides type checking, eliminating the need for separate type checking tools.
Elm’s code can be formatted using Elm Format, which follows a standard format and does not require configuration.

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