Finished Functional programming prep

Author: Bob Lee

course/generic-protocol/protocol-pitfalls.md

@@ -85,7 +85,7 @@ let cell: Listable = arc4random() * 2 == 0 ? FolderCell() : ListCell()
 `FileType` could be `Folder` or `Cell`. It is only known when you execute the `arc4Random()` method. By the time it is called, it is already compiled
 
 ### Source Code
-[6004_protocol_pitfalls](https://www.dropbox.com/sh/taxydi2cxionzxp/AAD7aKreX1i1wDwJKL1Q-yVEa?dl=0)
+[6004_protocol_pitfalls](https://www.dropbox.com/sh/b5wxh5lhhmqdphr/AACGBi7I9IO7jswwBgyk7fp2a?dl=0)
 
 ## Conclusion
 This is frustrating. In the following lesson, you will learn how to use the brain to circumvent the problem.

source/Update/functional-programming/8000_functioanal_programming.playground/Pages/intro_functional.xcplaygroundpage/Contents.swift renamed to source/Update/functional-programming/8000_functioanal_programming.playground/Pages/0001_intro_functional.xcplaygroundpage/Contents.swift

@@ -1,7 +1,7 @@
 
 //: ## Map
 
-extension Array { // # ,$ ,% ,&
+extension Array {
   func  myMap<T>(_ transform: (Element) -> T) -> [T] {
     var result: [T] = []
     for x in self {
@@ -18,5 +18,7 @@ Array(1...10).myMap { (Number) -> Int in
 
 let suits = ["♠", "♥", "♣", "♦"]
 let ranks = ["J","Q","K","A"]
-let result = suits.flatMap { suit in ranks.map { rank in  (suit, rank) }
+let result = suits.flatMap { suit in ranks.map {
+  rank in  (suit, rank)
+  }
 }

source/Update/functional-programming/8000_functioanal_programming.playground/Pages/filter.xcplaygroundpage/Contents.swift renamed to source/Update/functional-programming/8000_functioanal_programming.playground/Pages/0002_filter.xcplaygroundpage/Contents.swift

@@ -4,7 +4,7 @@
  ### Functional Programming
  ### Reduce
 
- **Problem:** Reduce
+ **Problem:** Convert big numbers to one or more
  */
 
 

source/Update/functional-programming/8000_functioanal_programming.playground/Pages/map.xcplaygroundpage/Contents.swift renamed to source/Update/functional-programming/8000_functioanal_programming.playground/Pages/0003_map.xcplaygroundpage/Contents.swift

@@ -1,9 +1,9 @@
 /*:
  ## Learn Swift with Bob
  ### Functional Programming
- ### Intro to Functional Paradigm
+ ### Flatmap
 
- **Problem:** What's functional?
+ **Problem:** Make it nice and plain
  */
 
 

source/Update/functional-programming/8000_functioanal_programming.playground/Pages/reduce.xcplaygroundpage/Contents.swift renamed to source/Update/functional-programming/8000_functioanal_programming.playground/Pages/0004_reduce.xcplaygroundpage/Contents.swift

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <playground version='6.0' target-platform='ios' display-mode='raw'>
     <pages>
-        <page name='intro_functional'/>
-        <page name='filter'/>
-        <page name='flatmap'/>
-        <page name='map'/>
-        <page name='reduce'/>
+        <page name='0001_intro_functional'/>
+        <page name='0002_filter'/>
+        <page name='0003_map'/>
+        <page name='0004_reduce'/>
+        <page name='0005_flatmap'/>
     </pages>
 </playground>