Clojure and ClojureScript are not identical
Take away
(not (== ClojureScript Clojure))- ClojureScript is not identical to Clojure.
- Most of the time they are compatible but, when in doubt, check the specific API reference.
- The CheatSheet may not have the full picture; check the actual docs.
As I tackle my first project with Clojure(Script), I have had the CheatSheet open most of the time for the past few weeks. Note that it's the Clojure cheatsheet, not the ClojureScript cheatsheet.
Today, I was following up on an implementation that uses walk (some form of it which I haven't quite figured out yet) to apply Tailwind classes to a hiccup structure. I wasn't getting the results I needed, prewalk leading to too much recursion errors, and postwalk leading to transformation of structures I didn't want to touch.
So, I saw postwalk-demo in the cheatsheet and wrote a simple test to run through the REPL, but got an error: clojure.walk.postwalk_demo is undefined. I thought I may be doing something wrong with the import, and wrestled with it for a bit.
I visited the ClojureScript API Documentation and then I found that while the walk functions are implemented, the -demo ones are not.
Also, note that the ClojureScript CheatSheet makes no mention of the walk functions, even though they are part of the language.
On the bright side, I love how accessible the documentation is, and how easy it was to clear up this confusion.
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Tailwind 4.x with ClojureScript