Elm REPL Worker

What Is It?

An Elm Platform.worker that runs elm repl internally. It communicates with your app via ports.

The REPL uses a port of the Elm compiler from Haskell to Elm.

For more information see the recording of the August 2024 Elm Online Meetup:
https://www.youtube.com/watch?v=OK9S_HUdReA.

How to Use It?

Compile the Worker

make

or

elm make src/Repl/Worker.elm --output dist/worker.js

Add It to Your App

In branch clients there are examples for adding the REPL worker to an Elm app:

• Loading the REPL Worker at Startup

  • eager-tea.html - Adds the REPL worker to a normal TEA app - Live demo

  • eager-io.html - Adds the REPL worker to an app using the IO monad of the Elm compiler port - Live demo

• Loading the Repl Worker on Demand

  • lazy-tea.html - Adds the REPL worker to a normal TEA app - Live demo

  • lazy-io.html - Adds the REPL worker to an app using the IO monad of the Elm compiler port - Live demo