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

#	Title	Applauses
1	The Bowling Game - From Imperative to Functional Programming - Part 2	6
2	Abstracting over Execution with Higher Kinded Types, and how to remain Purely Functional	6
3	The Functional Programming Triad of fold, scan and iterate	12
4	The Bowling Game - From Imperative to Functional Programming - Part 1	14
5	Defining filter using (a) recursion (b) folding (c) folding with S, B and I combinators (d) folding with applicative functor and identity function	15
6	Imperative Bowling Kata - 20 Years On - Delegating Menial Tasks to Github Copilot Chat - using Scala in IntelliJ IDEA	15
7	AI Concepts - MCP Neurons	17
8	Imperative Bowling Kata - 20 Years On - Delegating Menial Tasks to AI Coding Tool 'Claude Code'	19
9	Combinatorial Interview Problems with Backtracking Solutions - from Procedural to Functional Programming - Part 2	20
10	ApplicativeError functions handling and recovering from errors: A mnemonic to recall their signatures from their names	27
11	Combinatorial Interview Problems with Backtracking Solutions - from Procedural to Functional Programming - Part 1	28
12	Point-free or Die - Tacit Programming in Haskell	34
13	Non-strict functions, bottom, and Scala by-name parameters	34
14	Drawing Heighway’s Dragon - Part 3 - Simplification Through Separation of Concerns - Rotation Without Matrix Multiplication	36
15	Test Doubles - Terminology, Definitions and Illustrations - with Examples - Part 1	36
16	The Open-Closed Principle - Part 2 - The Contemporary Version - An Introduction	39
17	De Morgan's Laws are Monoid Homomorphisms	41
18	The Nature of Complexity in John Ousterhout’s Philosophy of Software Design	43
19	Year when lambda functions were introduced in various languages	43
20	List Unfolding - 'unfold' as the Computational Dual of 'fold', and how 'unfold' relates to 'iterate'	43
21	Drawing Heighway’s Dragon - Part 4 - Interactive and Animated Dragon Creation	44
22	Monad as Functor with pair of Natural Transformations	45
23	Addendum to `Monads do not Compose`	46
24	The Open-Closed Principle - Part 1 - The Original Version	46
25	Drawing Heighway’s Dragon - Part 2 - Recursive Function Simplification - From 2^n Recursive Invocations To n Tail-Recursive Invocations Exploiting Self-Similarity	47
26	Symmetry in the interrelation of flatMap/foldMap/traverse and flatten/fold/sequence	47
27	Folding Cheat Sheet #9 - List Unfolding - 'unfold' as the Computational Dual of 'fold', and how 'unfold' relates to 'iterate'	48
28	Functor Composition	49
29	Fibonacci Function Gallery - Part 2	51
30	Scala 3 by Example - Algebraic Data Types for Domain Driven Design - Part 2	51
31	Function Composition - forward composition versus backward composition	51
32	Fibonacci Function Gallery - Part 1	52
33	Monad Transformers - Part 1	55
34	Functional Effects - Part 1	55
35	Sequence and Traverse - Part 3	55
36	A sighting of sequence function in Practical FP in Scala	56
37	Sequence and Traverse - Part 1	56
38	Ad hoc Polymorphism using Type Classes and Cats	57
39	Folding Cheat Sheet #5 - Folding a list right and left using Cons and Nil results in the identity and reverse functions	59
40	Folding Cheat Sheet #7 - The three duality theorems of fold	59
41	Folding Unfolded - Part 5	59
42	Side by Side - Scala and Java Adaptations of Martin Fowler’s Javascript Refactoring Example	59
43	Functional Effects - Part 2	59
44	Folding Cheat Sheet Series Titles	60
45	‘go-to’ general-purpose sequential collections - from Java To Scala	60
46	Sequence and Traverse - Part 2	61
47	Sierpinski Triangle - Polyglot FP for Fun and Profit - Haskell and Scala	61
48	Monoids - Part 2 - With examples using Scalaz and Cats	62
49	Folding Cheat Sheet #8 - Folding with monoids	62
50	The aggregate function - from sequential and parallel folds to parallel aggregation	62
51	Fusing Transformations of Strict Scala Collections with Views	62
52	Monad Fact #5	62
53	Monads do not Compose	63
54	Applicative Functor - Part 3	63
55	A sighting of traverse_ in Practical FP in Scala	64
56	Monad Fact #2	64
57	A sighting of traverseFilter and foldMap in Practical FP in Scala	65
58	Game of Life - Polyglot FP - Haskell and Scala - Part 2	65
59	The Sieve of Eratosthenes - Part 1	65
60	Function Applicative for Great Good of Palindrome Checker Function	65
61	Arrive at monads by going from composition of pure functions to composition of effectful functions	66
62	Left and Right Folds - Comparison of a mathematical definition and a programmatic one	66
63	The Expression Problem Part 2	66
64	Monad Fact #4	67
65	Writer Monad for logging execution of functions	67
66	The Monad Fact Series	68
67	Kleisli Composition	68
68	Folding Unfolded - Part 4	68
69	Scala 3 by Example - Algebraic Data Types for Domain Driven Design - Part 1	69
70	Monad Fact #6	69
71	State Monad	69
72	Folding Cheat Sheet #3 - The universal property of fold	69
73	Folding Unfolded - Part 1	69
74	Natural Transformations	70
75	The Uniform Access Principle	70
76	Sum and Product Types - The Fruit Salad & Fruit Snack Example	71
77	N-Queens Combinatorial Problem - Polyglot FP for Fun and Profit – Haskell and Scala - Part 2	71
78	Game of Life - Polyglot FP - Haskell and Scala - Part 1	72
79	N-Queens Combinatorial Problem - Polyglot FP for Fun and Profit – Haskell and Scala - Part 4	72
80	Kleisli composition, flatMap, join, map, unit - implementation and interrelation - V2 updated for Scala 3	73
81	N-Queens Combinatorial Problem - Polyglot FP for Fun and Profit – Haskell and Scala - Part 3	73
82	Monoids - Part 1 - With examples using Scalaz and Cats	73
83	Algebraic Data Types for Data Oriented Programming - From Haskell and Scala to Java	73
84	Functor Laws	73
85	Applicative Functor - Part 2	75
86	Applicative Functor - Part 1	75
87	Monad Fact #1	75
88	Folding Cheat Sheet #2 - Programmatic and mathematical definitions of right fold and left fold	76
89	Computer Graphics in Java and Scala - Part 1	76
90	Function Applicative for Great Good of Leap Year Function	77
91	Quicksort - a whistle-stop tour of the algorithm in five languages and four paradigms	77
92	The Expression Problem Part 1	77
93	Lambda Expressions and Java 8 - Lambda Calculus, Lambda Expressions, Syntactic Sugar, First Class Functions	77
94	Folding Unfolded - Part 2	78
95	Monad Fact #3	79
96	Refactoring: A First Example - Martin Fowler’s First Example of Refactoring, Adapted to Scala	80
97	A Sighting of filterA in Typelevel Rite of Passage	82
98	Folding Cheat Sheet #6 - Left and right folds and tail recursion	82
99	From Subtype Polymorphism To Typeclass-based Ad hoc Polymorphism - An Example	83
100	Drawing Heighway’s Dragon - Part 1 - Recursive Function Rewrite - From Imperative Style in Pascal 64 To Functional Style in Scala 3	84
101	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	85
102	Compositionality and Category Theory	86
103	Game of Life - Polyglot FP - Haskell and Scala - Part 3	86
104	Computer Graphics in Java and Scala - Part 1b	87
105	Tagless Final Encoding - Algebras and Interpreters and also Programs	92
106	Scala 3 enum for a terser Option Monad Algebraic Data Type	93
107	Refactoring: A First Example - Martin Fowler’s First Example of Refactoring, Adapted to Java	93
108	The Functional Programming Triad of Folding, Scanning and Iteration - A first example in Scala and Haskell	95
109	Hand Rolled Applicative User Validation Code Kata	96
110	Functional Core and Imperative Shell - Game of Life Example - Haskell and Scala	98
111	Folding Cheat Sheet #1 - Folding over recursively defined data structures for natural numbers and lists	98
112	From Scala Monadic Effects to Unison Algebraic Effects	108
113	Nat, List and Option Monoids - From scratch - Combining and Folding - An example	110
114	Scala Left Fold Parallelisation - Three Approaches	110
115	The Sieve of Eratosthenes - Part 2 - Genuine versus Unfaithful Sieve	111
116	The Functional Programming Triad of map, filter and fold	117
117	N-Queens Combinatorial Problem - Polyglot FP for Fun and Profit – Haskell and Scala - Part 1	120
118	Definitions of Functional Programming	120
119	The Debt Metaphor - Ward Cunningham in his 2009 YouTube video	149
120	Direct Style Effect Systems - The Print[A] Example - A Comprehension Aid	155
121	N-Queens Combinatorial Puzzle meets Cats	159
122	Folding Unfolded - Part 3	200
123	Monad Laws Must Be Checked	268