Articles and Discussion

Fewer Operations on Custom Types is Valuable

Joël Quenneville considers why it's good that wrapping primitives in custom types restricts available operations.

Models That Match Reality — thoughtbot.com

In another post, Joël talks about building models that make impossible states impossible.

Tools and Projects

The set of elm-review rules continues to expand at pace. There are well over 40 rules available. Here are a couple of recent examples (note that elm-review can not only check code but also generate it):

SiriusStarr/elm-review-pipeline-styles 1.0.0

This rule by SiriusStarr checks pipelines (|>, <|, >>, << and parenthesised) to enforce things like maximum length.

lue-bird/elm-review-missing-record-field-lens 1.0.2

This rule by lue generates record field lenses for various lens packages (eg. arturopala/elm-monocle and z5h/zipper).

Talks and Podcasts

Elm Radio episode 41: elm-markdown — elm-radio.com

Dillon Kearns and Jeroen Engels talk about the philosophy of extensibility in dillonkearns/elm-markdown, and how to use the parsed Markdown blocks to do fun transformations. 

Loïc Knuchel and Tereza Sokol do some live coding to implement a new SQL parser for the Azimutt database schema explorer:

That's it for this week!

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