Elm is a beautifully designed, minimal, statically typed, pure functional programming language that transpiles to JavaScript. It has a friendly, chatty compiler (error messages of Rust were inspired by the Elm compiler) and built-in time travel debugger. Elm is also an architecture that inspired, for instance, Redux. Though it's a niche technology yet, it has a very active community and it's a gatedrug to the functional programming world. The guaranty that you cannot have a runtime error in production is relieving.

I've worked with Elm for two years in my past job. Through the language I became a much better programmer. I wish to present the beauty of Elm and lessons learned through some simple examples.