This is my own overview of the language and its related tools for my own reference and for anyone. I was heavily inspired by the amazing overview provided by the authors of the Odin programming language.

Overview

• When doc and apropos and source are not loading in the repl, then its almost always because you did not load in those functions in the repl instance. To do that run use 'clojure.repl

• When (-main) is throwing an error, just select the whole file and run the vs code calva command to 'evaluate current selected form'

• using a case statement to compare against characters, you need to do backslash the character in the condition part of the form, eg:

(case passed-in
    \( (println "LEFT_PAREN ( null")
    \) (println "RIGHT_PAREN ) null")
)

• Use doseq to loop through any kind of sequence

• Caveat on the above doseq tip, it would be more functionally apropritate to instead use map in many cases. As all we are doing is taking a list of things, evaluating each item to do something(modify, print, whatever) and then collect those results of those evaluations into an equivalently sized list.