[calrain]

What is one of those 'really clean' languages that we should be using then?

I'm interested!

[thunderbong]

Compared to other languages, IMHO Ruby (Not Rails), checks the boxes.

[consilient]

Purescript. By far the best type system of any frontend language, good interop, type-directed emit (so that you can, for instance, automatically generate parsers from type definitions), and unlike Elm actually treats users like adults.

[yakshaving_jgt]

Elm is an excellent choice.

[Brometheus]

Smalltalk