The checklist of Clojure beginner learning points

checklist.md

• editor integration

1. repl-driven development: evaluation & reload & documentation (Evaluation)
2. syntax highlight & rainbow parentheses (Readability)
3. formatter: cljfmt for clj/cljs (Formatting)
4. linter: clj-kondo (Lint)
5. s-expression editing: slurp, barf, delete surrounding parentheses, etc. (Editing)
6. search function references: clojure-lsp (Navigation)
7. search string in current directory: ack.vim (Navigation)
8. pprint & data visualization: pprint, inspector (Data Visualization)

• concepts

1. immutability
2. pure function & dependency injection
3. constraints instead of types
4. sequence abstraction & colleciton abstraction
5. lazy evaluation & gotcha

• programming tactics

1. naming
2. effective recursion
3. multiple ways to do one thing: different level of complexity
4. 8 important combinators
5. recursion & lazy-seq/lazy-cat
6. mapcat
7. postwalk
8. Three aspects of inteoperation: java, javascript, react

• mist

1. debug with scientific method
2. object API/http API/queue/log
3. modeling nil semantic in code and in database

Part 1 - Basic

1. 基本語法：整數、字串、邏輯真假、未定義空值
2. 資料集合: list, vector, map, set, tree
3. 條件語法：if / when / case/ cond / defmulti
4. 定義函數
5. 迴圈或是遞迴: loop / recursive
6. 區域變數、全域變數
7. FP - map/filter/reduce

Part 2 - Powerful Modeling Skills

8. Advanced FP -
   mapcat/ postwalk/ group-by/ interpose /interleave /frequency
9. Advanced FP - Combinators
10. lazy-seq/ recur
11. clojure spec / design by contract
12. How to model nil semantic?

Part 3 - Concurrency / Java/ Performance

13. atom/ var / REPL friendly design
14. future/ pmap / delay
15. java interoperation / reify / reflection
16. macro / with-redefs / with-out-str /doto
17. transducer / reducible