123 Decks Ordered By Love Count - Lowest First - Chse one - invert order

#	Title	Loves
1	The Bowling Game - From Imperative to Functional Programming - Part 2	0
2	Abstracting over Execution with Higher Kinded Types, and how to remain Purely Functional	7
3	The Bowling Game - From Imperative to Functional Programming - Part 1	11
4	Defining filter using (a) recursion (b) folding (c) folding with S, B and I combinators (d) folding with applicative functor and identity function	12
5	The Functional Programming Triad of fold, scan and iterate	12
6	AI Concepts - MCP Neurons	14
7	Imperative Bowling Kata - 20 Years On - Delegating Menial Tasks to Github Copilot Chat - using Scala in IntelliJ IDEA	15
8	Imperative Bowling Kata - 20 Years On - Delegating Menial Tasks to AI Coding Tool 'Claude Code'	20
9	Combinatorial Interview Problems with Backtracking Solutions - from Procedural to Functional Programming - Part 2	24
10	Combinatorial Interview Problems with Backtracking Solutions - from Procedural to Functional Programming - Part 1	26
11	ApplicativeError functions handling and recovering from errors: A mnemonic to recall their signatures from their names	28
12	Point-free or Die - Tacit Programming in Haskell	34
13	Test Doubles - Terminology, Definitions and Illustrations - with Examples - Part 1	35
14	The Open-Closed Principle - Part 2 - The Contemporary Version - An Introduction	37
15	Non-strict functions, bottom, and Scala by-name parameters	37
16	Drawing Heighway’s Dragon - Part 4 - Interactive and Animated Dragon Creation	40
17	Drawing Heighway’s Dragon - Part 3 - Simplification Through Separation of Concerns - Rotation Without Matrix Multiplication	40
18	De Morgan's Laws are Monoid Homomorphisms	41
19	Drawing Heighway’s Dragon - Part 2 - Recursive Function Simplification - From 2^n Recursive Invocations To n Tail-Recursive Invocations Exploiting Self-Similarity	41
20	List Unfolding - 'unfold' as the Computational Dual of 'fold', and how 'unfold' relates to 'iterate'	42
21	Folding Cheat Sheet #9 - List Unfolding - 'unfold' as the Computational Dual of 'fold', and how 'unfold' relates to 'iterate'	43
22	Addendum to `Monads do not Compose`	43
23	Symmetry in the interrelation of flatMap/foldMap/traverse and flatten/fold/sequence	45
24	Functor Composition	47
25	Monad as Functor with pair of Natural Transformations	47
26	Fibonacci Function Gallery - Part 1	48
27	From Subtype Polymorphism To Typeclass-based Ad hoc Polymorphism - An Example	49
28	Year when lambda functions were introduced in various languages	50
29	Scala 3 by Example - Algebraic Data Types for Domain Driven Design - Part 2	50
30	The Nature of Complexity in John Ousterhout’s Philosophy of Software Design	51
31	Drawing Heighway’s Dragon - Part 1 - Recursive Function Rewrite - From Imperative Style in Pascal 64 To Functional Style in Scala 3	51
32	Monad Transformers - Part 1	52
33	Function Composition - forward composition versus backward composition	53
34	Monads do not Compose	55
35	Fibonacci Function Gallery - Part 2	56
36	Folding Unfolded - Part 5	57
37	‘go-to’ general-purpose sequential collections - from Java To Scala	57
38	Sequence and Traverse - Part 1	58
39	Sequence and Traverse - Part 2	58
40	Folding Cheat Sheet Series Titles	59
41	Arrive at monads by going from composition of pure functions to composition of effectful functions	61
42	Functional Effects - Part 1	62
43	A sighting of sequence function in Practical FP in Scala	64
44	Folding Unfolded - Part 3	65
45	The Uniform Access Principle	65
46	N-Queens Combinatorial Problem - Polyglot FP for Fun and Profit – Haskell and Scala - Part 2	65
47	Side by Side - Scala and Java Adaptations of Martin Fowler’s Javascript Refactoring Example	66
48	Monad Fact #5	66
49	Fusing Transformations of Strict Scala Collections with Views	67
50	Monad Fact #3	67
51	State Monad	67
52	Algebraic Data Types for Data Oriented Programming - From Haskell and Scala to Java	68
53	The Monad Fact Series	68
54	The Open-Closed Principle - Part 1 - The Original Version	68
55	The aggregate function - from sequential and parallel folds to parallel aggregation	68
56	N-Queens Combinatorial Problem - Polyglot FP for Fun and Profit – Haskell and Scala - Part 4	68
57	Functional Effects - Part 2	69
58	Natural Transformations	69
59	Sierpinski Triangle - Polyglot FP for Fun and Profit - Haskell and Scala	69
60	Folding Cheat Sheet #8 - Folding with monoids	69
61	Monad Fact #4	70
62	The Sieve of Eratosthenes - Part 1	70
63	Game of Life - Polyglot FP - Haskell and Scala - Part 3	70
64	The Debt Metaphor - Ward Cunningham in his 2009 YouTube video	70
65	Monoids - Part 1 - With examples using Scalaz and Cats	70
66	Sequence and Traverse - Part 3	71
67	Folding Unfolded - Part 4	71
68	The Expression Problem Part 2	71
69	Scala 3 by Example - Algebraic Data Types for Domain Driven Design - Part 1	71
70	Folding Cheat Sheet #5 - Folding a list right and left using Cons and Nil results in the identity and reverse functions	73
71	Sum and Product Types - The Fruit Salad & Fruit Snack Example	73
72	Kleisli Composition	74
73	A sighting of traverse_ in Practical FP in Scala	74
74	Monoids - Part 2 - With examples using Scalaz and Cats	75
75	Folding Cheat Sheet #3 - The universal property of fold	75
76	Monad Fact #6	75
77	Game of Life - Polyglot FP - Haskell and Scala - Part 2	75
78	Left and Right Folds - Comparison of a mathematical definition and a programmatic one	75
79	Function Applicative for Great Good of Palindrome Checker Function	75
80	Folding Unfolded - Part 1	76
81	Functor Laws	76
82	Applicative Functor - Part 3	76
83	Ad hoc Polymorphism using Type Classes and Cats	76
84	Monad Fact #1	77
85	Writer Monad for logging execution of functions	77
86	A sighting of traverseFilter and foldMap in Practical FP in Scala	78
87	Lambda Expressions and Java 8 - Lambda Calculus, Lambda Expressions, Syntactic Sugar, First Class Functions	78
88	Applicative Functor - Part 2	79
89	The Functional Programming Triad of map, filter and fold	80
90	Folding Cheat Sheet #4 - For functions that can be defined both as a right fold and as a left fold, one may be more efficient than the other	80
91	Folding Cheat Sheet #2 - Programmatic and mathematical definitions of right fold and left fold	80
92	Monad Fact #2	84
93	Refactoring: A First Example - Martin Fowler’s First Example of Refactoring, Adapted to Java	84
94	Function Applicative for Great Good of Leap Year Function	86
95	Monad Laws Must Be Checked	86
96	Refactoring: A First Example - Martin Fowler’s First Example of Refactoring, Adapted to Scala	87
97	From Scala Monadic Effects to Unison Algebraic Effects	88
98	Folding Unfolded - Part 2	88
99	Compositionality and Category Theory	90
100	Kleisli composition, flatMap, join, map, unit - implementation and interrelation - V2 updated for Scala 3	91
101	N-Queens Combinatorial Problem - Polyglot FP for Fun and Profit – Haskell and Scala - Part 3	92
102	Folding Cheat Sheet #7 - The three duality theorems of fold	93
103	Game of Life - Polyglot FP - Haskell and Scala - Part 1	96
104	The Functional Programming Triad of Folding, Scanning and Iteration - A first example in Scala and Haskell	97
105	Computer Graphics in Java and Scala - Part 1	98
106	Quicksort - a whistle-stop tour of the algorithm in five languages and four paradigms	100
107	Scala 3 enum for a terser Option Monad Algebraic Data Type	102
108	Tagless Final Encoding - Algebras and Interpreters and also Programs	102
109	Applicative Functor - Part 1	105
110	Hand Rolled Applicative User Validation Code Kata	105
111	Functional Core and Imperative Shell - Game of Life Example - Haskell and Scala	107
112	Scala Left Fold Parallelisation - Three Approaches	111
113	The Sieve of Eratosthenes - Part 2 - Genuine versus Unfaithful Sieve	112
114	Computer Graphics in Java and Scala - Part 1b	114
115	A Sighting of filterA in Typelevel Rite of Passage	115
116	The Expression Problem Part 1	116
117	Folding Cheat Sheet #1 - Folding over recursively defined data structures for natural numbers and lists	122
118	Nat, List and Option Monoids - From scratch - Combining and Folding - An example	139
119	Definitions of Functional Programming	141
120	Direct Style Effect Systems - The Print[A] Example - A Comprehension Aid	153
121	N-Queens Combinatorial Puzzle meets Cats	154
122	N-Queens Combinatorial Problem - Polyglot FP for Fun and Profit – Haskell and Scala - Part 1	158
123	Folding Cheat Sheet #6 - Left and right folds and tail recursion	236