111 Decks Ordered By View Count - Highest First - Chse one - invert order

#	Title	Views
1	Direct Style Effect Systems - The Print[A] Example - A Comprehension Aid	6134
2	Folding Cheat Sheet #1 - Folding over recursively defined data structures for natural numbers and lists	3021
3	N-Queens Combinatorial Puzzle meets Cats	2544
4	The Open-Closed Principle - Part 1 - The Original Version	2477
5	Folding Cheat Sheet #6 - Left and right folds and tail recursion	2334
6	Fibonacci Function Gallery - Part 2	2285
7	List Unfolding - 'unfold' as the Computational Dual of 'fold', and how 'unfold' relates to 'iterate'	2076
8	Folding Cheat Sheet #7 - The three duality theorems of fold	2072
9	Fibonacci Function Gallery - Part 1	1987
10	Function Applicative for Great Good of Leap Year Function	1946
11	The Functional Programming Triad of map, filter and fold	1940
12	Folding Cheat Sheet #3 - The universal property of fold	1939
13	Folding Cheat Sheet #2 - Programmatic and mathematical definitions of right fold and left fold	1921
14	Monad Laws Must Be Checked	1899
15	Drawing Heighway’s Dragon - Part 1 - Recursive Function Rewrite - From Imperative Style in Pascal 64 To Functional Style in Scala 3	1814
16	Folding Cheat Sheet #8 - Folding with monoids	1733
17	The Open-Closed Principle - Part 2 - The Contemporary Version - An Introduction	1683
18	Lambda Expressions and Java 8 - Lambda Calculus, Lambda Expressions, Syntactic Sugar, First Class Functions	1647
19	A Sighting of filterA in Typelevel Rite of Passage	1640
20	Tagless Final Encoding - Algebras and Interpreters and also Programs	1483
21	Hand Rolled Applicative User Validation Code Kata	1393
22	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	1351
23	From Subtype Polymorphism To Typeclass-based Ad hoc Polymorphism - An Example	1305
24	Compositionality and Category Theory	1248
25	Folding Cheat Sheet #9 - List Unfolding - 'unfold' as the Computational Dual of 'fold', and how 'unfold' relates to 'iterate'	1084
26	The Nature of Complexity in John Ousterhout’s Philosophy of Software Design	1069
27	ApplicativeError functions handling and recovering from errors: A mnemonic to recall their signatures from their names	974
28	The Expression Problem Part 1	904
29	Scala Left Fold Parallelisation - Three Approaches	901
30	Drawing Heighway’s Dragon - Part 4 - Interactive and Animated Dragon Creation	808
31	Refactoring: A First Example - Martin Fowler’s First Example of Refactoring, Adapted to Java	786
32	Algebraic Data Types for Data Oriented Programming - From Haskell and Scala to Java	775
33	N-Queens Combinatorial Problem - Polyglot FP for Fun and Profit – Haskell and Scala - Part 1	767
34	Drawing Heighway’s Dragon - Part 3 - Simplification Through Separation of Concerns - Rotation Without Matrix Multiplication	737
35	Folding Cheat Sheet #5 - Folding a list right and left using Cons and Nil results in the identity and reverse functions	736
36	Definitions of Functional Programming	709
37	Kleisli composition, flatMap, join, map, unit - implementation and interrelation - V2 updated for Scala 3	695
38	The Sieve of Eratosthenes - Part 2 - Genuine versus Unfaithful Sieve	690
39	Computer Graphics in Java and Scala - Part 1	683
40	Drawing Heighway’s Dragon - Part 2 - Recursive Function Simplification - From 2^n Recursive Invocations To n Tail-Recursive Invocations Exploiting Self-Similarity	673
41	The Expression Problem Part 2	669
42	Refactoring: A First Example - Martin Fowler’s First Example of Refactoring, Adapted to Scala	666
43	Applicative Functor - Part 2	649
44	The Sieve of Eratosthenes - Part 1	646
45	Nat, List and Option Monoids - From scratch - Combining and Folding - An example	634
46	Kleisli Composition	633
47	From Scala Monadic Effects to Unison Algebraic Effects	632
48	N-Queens Combinatorial Problem - Polyglot FP for Fun and Profit – Haskell and Scala - Part 3	627
49	A sighting of traverse_ in Practical FP in Scala	616
50	Folding Unfolded - Part 1	615
51	Computer Graphics in Java and Scala - Part 1b	609
52	Monad Fact #1	608
53	Monad Fact #4	605
54	Game of Life - Polyglot FP - Haskell and Scala - Part 1	596
55	Applicative Functor - Part 1	595
56	Folding Unfolded - Part 2	595
57	Functional Core and Imperative Shell - Game of Life Example - Haskell and Scala	593
58	N-Queens Combinatorial Problem - Polyglot FP for Fun and Profit – Haskell and Scala - Part 2	592
59	The Monad Fact Series	586
60	Quicksort - a whistle-stop tour of the algorithm in five languages and four paradigms	583
61	A sighting of sequence function in Practical FP in Scala	582
62	N-Queens Combinatorial Problem - Polyglot FP for Fun and Profit – Haskell and Scala - Part 4	563
63	Side by Side - Scala and Java Adaptations of Martin Fowler’s Javascript Refactoring Example	562
64	A sighting of traverseFilter and foldMap in Practical FP in Scala	561
65	Scala 3 enum for a terser Option Monad Algebraic Data Type	560
66	Monad Fact #6	553
67	Sierpinski Triangle - Polyglot FP for Fun and Profit - Haskell and Scala	553
68	Scala 3 by Example - Algebraic Data Types for Domain Driven Design - Part 1	550
69	The Uniform Access Principle	550
70	Sum and Product Types - The Fruit Salad & Fruit Snack Example	546
71	‘go-to’ general-purpose sequential collections - from Java To Scala	544
72	Monad Fact #3	536
73	Arrive at monads by going from composition of pure functions to composition of effectful functions	535
74	Fusing Transformations of Strict Scala Collections with Views	534
75	The aggregate function - from sequential and parallel folds to parallel aggregation	533
76	Monad Fact #2	527
77	Folding Unfolded - Part 3	524
78	Function Applicative for Great Good of Palindrome Checker Function	522
79	Applicative Functor - Part 3	519
80	Folding Unfolded - Part 4	516
81	The Functional Programming Triad of Folding, Scanning and Iteration - A first example in Scala and Haskell	509
82	Folding Unfolded - Part 5	509
83	Functor Laws	509
84	Monad Fact #5	508
85	Game of Life - Polyglot FP - Haskell and Scala - Part 3	507
86	The Debt Metaphor - Ward Cunningham in his 2009 YouTube video	472
87	Functional Effects - Part 1	465
88	Game of Life - Polyglot FP - Haskell and Scala - Part 2	463
89	Left and Right Folds - Comparison of a mathematical definition and a programmatic one	461
90	Scala 3 by Example - Algebraic Data Types for Domain Driven Design - Part 2	448
91	Monoids - Part 1 - With examples using Scalaz and Cats	443
92	Sequence and Traverse - Part 3	435
93	Folding Cheat Sheet Series Titles	432
94	Sequence and Traverse - Part 1	428
95	Functional Effects - Part 2	427
96	Sequence and Traverse - Part 2	415
97	Natural Transformations	411
98	Monoids - Part 2 - With examples using Scalaz and Cats	408
99	State Monad	405
100	Writer Monad for logging execution of functions	394
101	Ad hoc Polymorphism using Type Classes and Cats	392
102	Monads do not Compose	259
103	Monad Transformers - Part 1	245
104	Addendum to `Monads do not Compose`	245
105	Function Composition - forward composition versus backward composition	241
106	Functor Composition	235
107	Monad as Functor with pair of Natural Transformations	234
108	De Morgan's Laws are Monoid Homomorphisms	226
109	Symmetry in the interrelation of flatMap/foldMap/traverse and flatten/fold/sequence	223
110	Year when lambda functions were introduced in various languages	213
111	Non-strict functions, bottom, and Scala by-name parameters	95