Writing Native

What is Elm Native

Javascript! Straight up Javascript, wrapped in a framework. It's not type checked, it runs on a Javascript engine just like JQuery.

There can be considered two parts to Elm:

• Elm.Native
  • Native code, written by humans!
  • Follows a standard structure
  • N.B: must have "native-modules": true in elm-package.json for it to be included
• Elm
  • Generated code, compiled from code written in Elm the language

This can be broken down further, into

• The Elm runtime
  • Provided by the core library for elm
  • Contains a standard set of modules which are included in every Elm project
  • Also provides bootstrapping and setup for the framework
• Elm modules
  • Anything that isn't part of core

Note that Elm modules could have native extensions that overwrite core libraries. This is how some meta-programming in Elm is achievable.

Now check out:

• Running headless Elm