Haskell?

A programming language

People write code in it sometimes

Why JavaScript in Haskell?

The JavaScript Problem

Anecdote

Sharing is caring

1. Write your own Haskell-like language!

ADTs + pattern matching!

Elm

PureScript

Sharing?

Backend?

2. Compile a subset of Haskell to JS!

Fay

Haste

Subset?

3. Boil the ocean

1. Implement the Haskell RTS in JavaScript

2. Implement JavaScript shims for C dependencies

3. Get all the tooling to support your implementation

4. ???

5. Profit!

This is what we use at work

4. WASM!

WebGHC

Asterius