差異處

這裏顯示兩個版本的差異處。

--- learn:functional-programming [2022/06/20 22:28] – admin_wi1d5ky
+++ learn:functional-programming [2024/12/22 21:17] (目前版本) – 外部編輯 127.0.0.1
@@ 行 1: / 行 1: @@
-# Functional Programming
+# Functional Programming 筆記
+## Library
+- [Ramda](https://www.npmjs.com/package/ramda)
+- [fp-ts](https://www.npmjs.com/package/fp-ts)
-React + Ramda
+## 值 vs Functor
+^ f	  ^ g		^ composition 		^
+| pure	  | pure	| compose(f, g)		|
+| effects | pure(unary)	| f.map(g)		|
+| effects | pure(n-ary)	| f1.map(g).ap(f2)	|
+| effects | effects	| m.chain(f).chain(g)	|
+## Functor
+^	ADT	^	Effect			^
+|	Either		|	處理錯誤情境		|
+|	Future		|	#TODO			|
+|	Identity	|	#TODO			|
+|	IO		|	處理永不失敗的同步計算	|
+|	Maybe		|	處理無值情境		|
+|	Reader		|	#TODO			|
+|	Tuple		|	#TODO			|
+|	State		|	#TODO			|
+### Either
+  * 處理錯誤情境
+  * 分成 `Either.Right` 和 `Either.Left`
+  * `Either.Right` 會繼續跑，而 `Either.Left` 則會忽略後續運算，執意將手上的值傳下去
+  * <https://ithelp.ithome.com.tw/articles/10279389>
+```javascript
+const addOne = num => Right(R.add(1));
+const error = () => Left(new Error('error'))
+Right(10)
+    .chain(addOne)
+    .map(R.add(2))
+    .inspect() // Right(13)
+Right(10)
+    .chain(error)
+    .map(R.add(2))
+    .inspect() // Left(Error: error)
+```
+### Future
+> TODO
+### Identity
+> TODO
+### IO
+  * 處理永不失敗的同步計算
+  * <https://ithelp.ithome.com.tw/articles/10278925>
+### Maybe
+  * 處理無值情境 ( null || undefined )
+  * <https://ithelp.ithome.com.tw/articles/10277399>
+### Reader
+  * 用來避免中間傳送無用的 `dep`
+  * <https://ithelp.ithome.com.tw/articles/10280177>
+### Tuple
+> TODO
+### State
+    * <https://ithelp.ithome.com.tw/articles/10280554>
+## Articles
+- <https://ithelp.ithome.com.tw/users/20140431/ironman/4122?page=1>
+- <https://medium.com/hannah-lin/9edc7d705c3f>
 - <https://medium.com/@mirkomariani/e83e54fcd86b>
 - <https://medium.com/let-s-learn/5db457997554>