List of JavaScript Kata to Update

This page lists JavaScript kata still stuck in Node 8.x. It's not grouped in any way at the moment.

Any help is appreciated, but I'm still looking for ways to automate common fixes. jscodeshift can be used to transform the code (see example). If you come up with a codemod, please create a similar demo on AST explorer and let me know on https://github.com/codewars/runner/issues/119. That issue also includes some background information.

Since Node 10.x, we've been using Mocha instead of the custom test framework. There are some required changes related to this.

• The test structure must be describe -> it -> assertions or it -> assertions (i.e., assertions must be inside it, and it cannot be nested). Grouping related tests with describe is preferred if there are many test cases. Note that tests with an invalid test structure might still look valid in the output panel. Automated updates have skipped over those with invalid structure.
• Test case callback passed to it is no longer immediately executed. This can be tricky to notice.
  • To avoid common issue with closure within a loop, all var within all tests have been upated to let when possible (if tests passed after the change).
• Test case defined with a callback. Some authors likes to write it("test", _ => {}) which creates a asynchronous test (it("test", (done) => { doStuff().on("end", done); })). Most of these have been fixed.
• Old assertions are still available in Node 10. It's also available in Node 12 with const Test = require("@codewars/test-compat");. Updating to Chai assertions can be done later with codemod, so it can be skipped.

Use the new "Fork" feature to update kata:

You don't need to open an issue/suggestion and wait to edit. Forking a kata in a language is similar to forking an approved translation, but better because

• all languages can be forked, including those added directly in Kata Editor and the original language
• it's never outdated because it forks from the kata

You should see "Fork" when viewing a kata with the language you've completed in selected. Click that to open a translation editor with the current version filled in. The proposed changes can be merged or rejected after publishing, just like translations.

Notes

Native BigInts in Node

Native BigInts are available in Node 10.x. JS versions of all BigInt katas (arithmetic operations to numbers represented as strings) should be removed once Node 8.x is deprecated in the future.

Though they should've been removed already anyway since bignumber.js is installed in the environment, which means require would have to be disabled. Which does nothing anyway because people can just copy the entire minified source code from the bignumber.js repo into their solution, and things go out of hand very quickly with this.

List of Node 8.x Kata

1. "AURUM RECLUDIT CUNCTA" - yet another FUBAR kata with restrictions which relies on specific setup of Node 8.
2. "console.log" and the Lexical "this"
3. "string".forEachMatch(regex, callback, [context]);
4. "TRaduttore".tr( [ "u", "tt" ] , "it" )
5. (Insane) N Warriors and a Lamp
6. (Ready for) Prime Time
7. [AI] Play Me : CodeWarsRunner I (Introduction)
8. [AI] Play Me : CodeWarsRunner II (Acceleration)
9. [BF] Even or Odd?
10. [BF] Fibonacci Sequence
11. [BF] Quine
12. [BF] Reverse input
13. [BF] Sort string
14. [BF] Squares
15. # Counting 1: I Want Some Subsets, Not All!
16. #For Kids# Date decryption.
17. #For Kids# Date encryption.
18. #01 - Music theory - Minor/Major chords
19. #1 Sequences: Pure Even Digit Perfect Squares (P.E.D.P.S)
20. #4 Matrices: Process for a Square Matrix
21. #6 Matrices: How Many Matrices Do These Elements Produce?
22. #7 Matrices: Focused on the Contour
23. #8 Matrices: Up and Down Sorting For Each Column
24. 1 Two 3 Four 5!
25. 1RM Calculator
26. 1st day of month that are Sunday in a year range
27. 2 DNAs sequences, coding for same protein?
28. 2048!
29. 5command - Esoteric programming #1
30. 5x5 Tap Code
31. 7-segment converter
32. 80's Kids #1: How Many Licks Does it Take?
33. 80's Kids #10: Captain Planet
34. 80's Kids #2: Help ALF Find His Spaceship
35. 80's Kids #3: Punky Brewster's Socks
36. 80's Kids #4: Legends of the Hidden Temple
37. 80's Kids #5: You Can't Do That on Television
38. 80's Kids #6: Rock 'Em, Sock 'Em Robots
39. 80's Kids #7: She's a Small Wonder
40. 80's Kids #8: The Secret World of Alex Mack
41. 80's Kids #9: Down in Fraggle Rock
42. 8kyu interpreters: HQ9+
43. A (no more) bugs trilogy: Episode 3 - Make a Player
44. A Banking Trouble
45. A bugs trilogy: Episode 1 - "Let Math.Random(); decide your future"
46. A Crazy Robot? Who's is behind the scenes to make that?
47. A for Apple
48. A functional deck of cards....
49. A kata is a kata, you can't say it's only a half!
50. A Knight's Tour
51. A Man and his Umbrellas
52. A Memory game array
53. A Promise is a Promise
54. A simple Tic-tac-toe class
55. A Taste of Curry
56. Aaaaaand theeeeeen
57. ABC - Esoteric programming #2
58. Abstract Model Magic
59. Accumulator Calculator
60. ACME factory needs your help
61. Acute, Obtuse, or Right?
62. AD2070: Help Lorimar troubleshoot his robots- ultrasonic distance analysis
63. AD2070: Help Lorimar troubleshoot his robots-Search and Disable
64. Add Length
65. Add new item (collections are passed by reference)
66. Adding Arrays
67. Adding Big Numbers
68. Adding Binary Numbers
69. Additionless addition.
70. Additive Numbers
71. Advanced Events
72. After(?) Midnight
73. Age Range Compatibility Equation
74. Alex & snooker: points earned.
75. Alex & snooker: scores.
76. Alfred's Laundry Robot
77. Algebraic Lists
78. Aliens have landed
79. All Balanced Parentheses
80. All representations as binomial coefficient, or: How often in Pascal's Triangle ?
81. All Star Code Challenge #12
82. All Star Code Challenge #17
83. All Star Code Challenge #18
84. All Star Code Challenge #32
85. All that is open must be closed...
86. All unique
87. Alphabet symmetry
88. Alphabetic Anagrams
89. Alphabetical Sequence
90. Alphabetize a list by the nth character
91. Alphametics Solver
92. Alternate capitalization
93. Alternate Square Sum
94. altERnaTIng cAsE <=> ALTerNAtiNG CaSe
95. Alternating Loops
96. Alternative Truth Machine
97. Am I safe to drive?
98. Amidakuji
99. Amount to Coins - Universal
100. An 'orrible expression on 'is face
101. An Eventful Bus
102. Anagram difference
103. And the Mosckar goes to…
104. Angle-a-trons and Phyllotaxy
105. Angular modules
106. Anonymous Returns.
107. Answering questions about data with Lo-Dash - 1
108. Antipodal Points with Same Temperature
109. AOP - After
110. Apparently-Modifying Strings
111. Apply offset to subtitles
112. Approving Kata
113. Approximate Fractions
114. Are arrow functions odd?
115. Are the values equal?
116. Are there any arrows left?
117. Are they the "same"?
118. Are we alternate?
119. Are You a One-Liner? #1: divide 2,3,5,7
120. Are You a One-Liner? #2: multiplication table
121. Are You a One-Liner? #3: A4 Paper
122. Are you Geometric or Arithmetic? No, I´m both of them.
123. Area and perimeter of the ellipse
124. Area of a Circle
125. Area of a Square
126. Area of House from Path of Mouse
127. Area or Perimeter
128. Arguments to Binary addition
129. Array combinations
130. Array Deep Count
131. Array element parity
132. Array Graphics - Lines
133. Array Info
134. Array power
135. Array reduction
136. Array to HTML table
137. Array.prototype.push
138. Array.prototype.splice(from, count, insertItems...)
139. Array.prototype.splice(from, count, insertItems...) - Advanced
140. Arrays are Objects
141. Arrays of cats and dogs
142. Arrays of Lists of Sets
143. Article archive and social likes
144. Ascend, Descend, Repeat?
145. Ascii Art Generator
146. ASCII Games: Dance Dance Evolution I
147. ASCII Games: Flood Fill (Player)
148. ASCII Games: Warning: Ice!
149. ASCII hex converter
150. Assembler interpreter (part II)
151. Assorted Rectangular Pieces Puzzle
152. Atbash Cipher Helper
153. ATM Heist
154. Authenticate a list of usernames
155. Auto Sorted Array - Easy
156. Autocomplete! Yay!
157. Automaton (Part 2)
158. Automaton (Part 3)
159. Automorphic Number (Special Numbers Series #6)
160. Average Scores
161. Back to KinderGarten (eeeeeeasy)
162. Back to KinderGarten 3 : What's this list ? (easy?)
163. Back to KinderGarten II : Where's Aïcha ? (eeeasy)
164. Back to the Future?
165. Balance the arrays
166. Balance the parentheses
167. Balance the tree
168. Ball Launcher Robot
169. Ball Roll On Quartic Polynomial
170. Bar Graph - Graphing #1
171. Barbell racking calculator
172. Barbell weight
173. Base64 Encoding
174. Baseball
175. Basic Compression
176. Basic JS - Building a calculator
177. Basic markdown to HTML
178. Basic neural networks - Machine Learning #2
179. Basics - Generators #1
180. Basics 04: Rotate Matrix
181. Basket of Fruits
182. Batman Quotes
183. Bầu cua tôm cá
184. BBQ Pitmaster
185. Be Concise I - The Ternary Operator
186. Be Concise II - I Need Squares
187. Be Concise III - Sum Squares
188. Be Concise IV - Index of an element in an array
189. Beautiful STAR
190. BECOME IMMORTAL
191. Beeramid
192. Begin your day with a challenge, but an easy one.
193. Beginner Series #2 Clock
194. Behind Enemy Lines
195. Berlin Clock
196. Berserk rater: CG Vs. Clang
197. Bet payout calculator
198. Bicycle gear inch calculator
199. Big Arithmetic - integer add/subtract
200. Big Integer Modulo
201. Big integers sum
202. Big number problem
203. Bin to Decimal
204. Binary Genetic Algorithms
205. Binary scORe
206. Binary string
207. Binary Swap
208. Binary sXORe
209. Binary to string
210. Binary Zoo
211. Binding within the List Monad
212. BIO 2013 : Watching the Clock
213. bit "Wise" #1: XOR-cism
214. Bit calculator
215. Bit Plane Return
216. BitMath: Addition
217. BitMath: Multiplication
218. Bitty Words
219. Blobservation
220. Block-exchanging reverse
221. Bloxorz Solver
222. Boardgame Fight Resolve
223. Bob - The Automated Manager
224. Bob's Secret Cipher
225. Body mass index calculation
226. Boggle Word Checker
227. Boolean logic from scratch
228. Bouncing Ball
229. Bracket Duplicates
230. Brainscrambler - Esoteric programming #3
231. Branch Prediction
232. Breadcrumb Generator
233. Breadth-First DOM Traversal
234. Bribe the Guards of the Crown Jewels
235. Broken Image - Puzzles #1
236. Broken sequence
237. Build a pile of Cubes
238. Build a Trie
239. Building a mini search engine
240. Building a Sequence Cocatenating Digits with a Given Order.
241. Building blocks
242. Building Strings From a Hash
243. Bulk up!
244. Burrows-Wheeler transform I. Coding
245. Burrows-Wheeler transform II. Decoding
246. Buying a car
247. Buying the Farm : Irrigation
248. Caesar Cipher Encryption - Variation
249. Caesar Cipher Helper
250. Caffeine Script
251. Calculate age in years
252. Calculate Hypotenuse of Right-angled Triangle
253. Calculate mean and concatenate string
254. Calculate number of inversions in array in linearithmic time
255. Calculate Price Excluding VAT
256. Calculate the required interest rate
257. Calculate Two People's Individual Ages
258. Calculating Expected Utility
259. Calculating with Functions
260. Calculating with objects
261. Calculator (Addition and Spaces) [Part 1]
262. Calendar Week
263. Callback Set
264. Cambridge Word Scramble
265. CamelCase Method
266. Can I have cake?
267. Can you get the loop ?
268. Can you keep a secret?
269. Can you move to Zephland?
270. Can you test it for me?
271. Candy count
272. Candy problem
273. Capitalize first letter of a string
274. Capitals first!
275. Car Door Roulette - Harder Version
276. Card Counting
277. Card game
278. Card game: twenty-one
279. Cartesian coordinates from degree angle
280. Cartesian neighbors
281. Cartesian neighbors distance
282. Case Reversal of Consecutive Duplicates
283. Catch me if you can (rolling start)
284. Centroid I
285. Champernowne's Championship
286. Change it up
287. char_to_ascii
288. Character Concatenation
289. Character limits: How long is your piece of string?
290. Cheating a bit...
291. Check a Curious Divisibility. (Brute force version)
292. check for winning box in dots and boxes game
293. Check if a triangle is an equable triangle!
294. Check if number is prime without loops
295. Check if two words are isomorphic to each other
296. Check RNA Nucleotides
297. Check three and two
298. Check your arguments
299. Checkerboard King Combo Move
300. Chess piece values
301. Chessboard Squares Under Queen's Attack
302. Chicken Sexing
303. Chinese Zodiac
304. Chocolate Celebration
305. Chocolate Party
306. Choose featured projects for Gratipay's homepage!
307. Christmas baubles on the tree
308. Chuck Norris I - Push Ups
309. Chuck Norris II - One Punch
310. Chuck Norris VI - Shopping with Chuck
311. Chuck Norris VII - True or False? (Beginner)
312. Church numbers
313. Cipher
314. Circular Objects #1 - Running around in circles
315. Class conundrum - Bug Fixing #7
316. Classy Classes
317. Classy Extentions
318. Clay Pigeon Shooting
319. Clean up your Gibberish!
320. Clean your shoes rack
321. Climbing the Leaderboard
322. Clock Hands
323. Clock Patience
324. Closest and Smallest
325. Closest elevator
326. Closest friends
327. Closest to Zero
328. Clue - Esoteric programming #4
329. Code Adventurer Guild: BeiJing
330. Code Adventurer Guild: HongKong
331. Code-ilocks. This exercise is JUST RIGHT!
332. Codewars style ranking system
333. Coding 3min : A*B=C
334. Coding 3min : Are they symmetrical?
335. Coding 3min : Balance Attraction
336. Coding 3min : Count animals
337. Coding 3min : Eat watermelon
338. Coding 3min : Excel Puzzle #1
339. Coding 3min : Excel Puzzle #2
340. Coding 3min : Find the murderer
341. Coding 3min : Guess the Hat
342. Coding 3min : Hacker and change
343. Coding 3min : Half it II
344. Coding 3min : Half it III
345. Coding 3min : Half it IV
346. Coding 3min : Max Value
347. Coding 3min : Parallel circuit
348. Coding 3min : Planting Trees
349. Coding 3min : Reading a Book
350. Coding 3min : Remove screws I
351. Coding 3min : Remove screws II
352. Coding 3min : Series circuit
353. Coding 3min : Tidy up the room
354. Coding 3min : toLoverCase()
355. Coding 3min : Waiting for a Bus
356. Coding 3min: Bug in Apple
357. Coding 3min: Collatz Array(Split or merge)
358. Coding 3min: Father and Son
359. Coding 3min: Give me the equation
360. Coding 3min: Trypophobia
361. Coding Meetup #10 - Higher-Order Functions Series - Create usernames
362. Coding Meetup #15 - Higher-Order Functions Series - Find the odd names
363. Coding with Squared Strings
364. Collatz
365. Collision Detection
366. Color Ghost
367. Color of the moment
368. Colored Hexes!
369. Coloured Lattice Points Forming Coloured Triangles
370. Combine objects
371. Combining Records
372. Common array elements
373. Common Bit Twiddles
374. Compact data processing: bit comparison
375. Compare powers
376. Competitive eating scoreboard
377. Complete The Pattern #10 - Parallelogram
378. Complete The Pattern #11 - Plus
379. Complete The Pattern #12
380. Complete The Pattern #13
381. Complete The Pattern #14
382. Complete The Pattern #15
383. Complete The Pattern #16
384. Completed Mahjong Hands
385. Complex numbers
386. Composed Integers Having Prime Factors Only Once
387. Composing squared strings
388. Compound Nouns, Common Nouns, and Adjectives Test
389. CompoundArray
390. Compression : impossible
391. Computational Geometry 101: Perimeter and Area of an arbitrary shape (2D)
392. Compute a convex hull
393. Compute the Largest Sum of all Contiguous Subsequences
394. Compute Unix path
395. Concatenating functions
396. Concatenation substring
397. Conference Traveller
398. Config Parsing: INI
399. Configure an express server
400. Connect Four
401. Connect Four: Unlimited Edition
402. Connected blocks
403. Connected blocks (second part)
404. Consecutive Count
405. Consecutive k-Primes
406. Consecutive strings
407. Conservative Property Proxy
408. Consonant value
409. Constrained GCD
410. Contact Deduplication
411. Contamination #1 -String-
412. Control the Beast (controlled components in ReactJS)
413. Convert an array of strings to array of numbers
414. Convert Hash To An Array
415. Convert PascalCase string into snake_case
416. Convert Sentences to New York, my guy.
417. Convert the score
418. Converter
419. Converting integer to currency format
420. Conway's Game of Life - Unlimited Edition
421. Coordinates Validator
422. Coprimes up to N
423. Cost of Shopping
424. Count all the sheep on farm in the heights of New Zealand
425. Count chains of ones in subsequences
426. Count the Combinations
427. Count the connected components
428. Count the divisible numbers
429. Count the number of cubes with paint on
430. Count the Ones
431. Count the smiley faces!
432. Count The Zeros: 1 to n
433. Count word occurrences
434. Countdown - Longest Word
435. Countdown to Christmas
436. Counting DNA Nucleotides
437. Counting Duplicates
438. Counting E-Primes
439. Counting in English one, two, three... to 2 Quadrillion (2,000,000,000,000,000)
440. Counting Nested Functions
441. Counting Sort
442. Counting String Subsequences
443. Covfefe
444. Cracking CRC32
445. Crash Override
446. Crashing Boxes
447. Cream of the crop
448. Create 10x10 array and randomly fill each cell with "A", "B", "C", or "D"
449. Create a frame!
450. Create a House Cleaning Rota
451. Create a password hashing function.
452. Create Four Letter Birding Codes from Bird Names
453. Create palindrome
454. Create the base - Dungeon crawler #1
455. Create Your Own "Promise.all()"
456. Creating Elements with React
457. Credit Card Checker
458. Cross the Bridges
459. Crossed words
460. Crouching Distribution, Hidden Constant
461. Crushing blows and blushing crows
462. Cryptic Cave: Episode 1
463. Cryptography Challenge - Log of Lights
464. CSV representation of array
465. Currency Conversion
466. Currying functions: multiply all elements in an array
467. Custom Array Filters
468. Custom concat() Array Method
469. Custom each() Array method
470. Custom Setters and Getters
471. Cut array into smaller parts
472. Cut me in Pieces but in The Way I Like
473. D&D Character generator #1: attribute modifiers and spells
474. D&D Character generator #2: psion power points
475. D&D Character generator #3: carrying capacity
476. Dangerous Dates
477. Dashatize it
478. dataTypes String to Array
479. Date Format Validation
480. Date formatter
481. Date Sanity Methods
482. Dave's gamble.
483. Days in the year
484. Debug Sum of Digits of a Number
485. Decibel Scale
486. Decipher the Message
487. Decipher this!
488. Decode Morse
489. Decode the Morse code
490. Decode the Morse code, advanced
491. Decode the Morse code, for real
492. Decoded String by the Numbers
493. Decompose double strand DNA into 6 reading frames
494. Decreasing Inputs
495. Decrypt this school cipher
496. Deep Assignment
497. Deep Freeze
498. Defeat the Elemental Titans
499. Defend your castle
500. Deferred Objects
501. Déjà vu Duplicates
502. Delete occurrences of an element if it occurs more than n times
503. Deletion in an array
504. Delta Bits
505. Depot organization 1
506. Derive Cipher from Plaintext
507. Describe the shape
508. Design a simple markdown compiler with string substitution feature
509. Determine Results of Pole Vault Competition
510. Devil's Sequence
511. DevOps legacy roasting -> disco inferno -> burn baby burn
512. Diamonds and Toads
513. Dice roll - D&D #1
514. Dice Rolling
515. Did she say hallo?
516. Difference between two collections
517. Difference Of Squares
518. DigitAll
519. Digits Average
520. Disarium Number (Special Numbers Series #3)
521. Distance Between 2 Points on a Cartesian Plane
522. Distance from the average
523. Distribute server workload
524. Divide integers as strings
525. Divide numbers as strings
526. Divisible by previous digit?
527. Divisor harmony
528. DNA GC-content
529. Do something "n.times" (Simplifying "for" loops)
530. Do you speak "English"?
531. Do you speak retsec?
532. Dollars and Cents
533. Dominant array elements
534. Dominant primes
535. Domino Tiling - 2 x N Board
536. Domino Tiling - 3 x N Board
537. Domino Tiling - 5 x 2N Board
538. Domino Tiling - M x N Board with Holes
539. Don't Drink the Water
540. Don't Eat the Last Cake!
541. Don't get stressed
542. Don't rely on luck HARDCORE
543. Dont drive too long!
544. Doomsday Basic
545. DOS era #1: Help!!!
546. DOS era #2: Attrib
547. Dota 2 Bots - Pudge's Meat Hook
548. Double Rainbow!
549. Double Trouble
550. Down Arrow With Numbers
551. Draw a Circle.
552. Dream Or Reality
553. Dreidel dreidel
554. Driving Licence
555. Driving School Series #2
556. Drunk friend
557. Drying Potatoes
558. Duck Duck Goose
559. Dude E Free
560. Dumb News: The Truth About CW Leaderboard !
561. Dummy Epoch - find the gap
562. Duplicate Arguments
563. Duplicates. Duplicates Everywhere.
564. Easy Cyclist's Training
565. Easy Diagonal
566. Easy Line
567. Easy mathematical callback
568. Easy Time Convert
569. Echo
570. Elections: Weighted Average
571. Element equals its index
572. Elevator algorithm
573. Elevator Distance
574. Elevator with call buttons
575. Ellipse contains point?
576. Elo rating - one game, one pair
577. Email Validation
578. Emily's Eccentric Encoding
579. Emirps
580. English beggars
581. Enumerable Magic - Does My List Include This?
582. Enumerable Magic #1 - True for All?
583. Enumerable Magic #4 - True for None?
584. Enumerable Magic #5- True for Just One?
585. Equation Discovery
586. Equivalent Dice
587. Error Throwing - Error Handling #2
588. ES2015: Get the real length of string. 
589. ES6 string addition
590. Escape the maze
591. Esolang Interpreters #1 - Introduction to Esolangs and My First Interpreter (MiniStringFuck)
592. Especially Joyful Numbers
593. esrever esreveR!
594. Euclidean distance in n dimensions
595. Evaluate a postfix expression
596. Even Binary Sorting
597. Even numbers in an array
598. Even odd disparity
599. Even Odd Pattern #1
600. Every archer has its arrows
601. Every possible sum of two digits
602. Everything Is Even
603. Evil Autocorrect Prank
604. Excel sheet column numbers
605. Exclamation marks series #4: Remove all exclamation marks from sentence but ensure a exclamation mark at the end of string
606. Exclusive "or" (xor) Logical Operator
607. Exclusive presentations
608. Expression Transpiler
609. Expressive Objects
610. Extended weekends
611. Extended Weekends - Challenge Edition
612. Extending JavaScript Objects: Contains Method
613. Extending JavaScript Objects: Get First & Last Array Element
614. Extending JavaScript Objects: Reverse String
615. Extending JavaScript Objects: Simple Math Methods
616. Extra Perfect Numbers (Special Numbers Series #7)
617. extract file name
618. Extract the IDs from the data set
619. Fabergé Easter Eggs crush test
620. Fac Recursion (Pest control - find the bugs and fix them)
621. Factorial
622. Factorial length
623. Factory Functions #1 - Creating profile for people
624. Factory Functions #2 - Inheritance and Object Composition
625. Failed Filter - Bug Fixing #3
626. Failed Sort - Bug Fixing #4
627. Fake website #1: Choose a good name for the website
628. Fake website #2: Choose a best server to create website
629. Fake website #3: Choose a cool color for the web site
630. Fake website #4: Design a strict user registration verification function
631. Fake website #6: Design an automatic beta katas processing function
632. Fame Of All
633. Fast/Precise Natural Logarithm
634. Fastest Code : A*B=C
635. Fastest Code : Count animals
636. Fastest Code : Equal to 24
637. Fastest Code : Excel Puzzle #2
638. Fastest Code : Half it III
639. Fastest Code : Half it IV
640. Faulty Data Recovery
641. Feed Kahumolings!
642. Feynman's square question
643. Fibo akin
644. Fibonacci Generator
645. Fibonacci on roids
646. Fibonacci, Tribonacci and friends
647. Fifa 17 Launch
648. Figure Out the Notes
649. File Finder
650. File Size Trouble!
651. Fill in the gaps in my timesheet.
652. Filling an array (part 1)
653. Filling an array (part 2)
654. Filter out for good!
655. Filter valid romans
656. Financing Plan on Planet XY140Z-n
657. Find Cracker.
658. Find a Bunch of Common Elements of Two Lists in a Certain Range
659. Find a Very Special Set Of Numbers In a Certain Range
660. Find All Array Values That Fall Within a Given Difference
661. Find all non-consecutive numbers
662. Find all occurrences of an element in an array
663. Find an area
664. Find array
665. Find Factors Down to Limit
666. Find Fibonacci last digit
667. Find Grid Position
668. Find heavy ball - level: conqueror
669. Find heavy ball - level: master
670. Find heavy ball - level: novice
671. Find heavy ball - level: ubermaster
672. Find last Fibonacci digit [hardcore version]
673. Find me the names
674. Find min and max
675. Find Multiples of a Number
676. Find Nearest square number
677. Find number in an array # 2
678. Find number in an array # 3
679. Find number in an array # 4
680. Find number in an array # 5
681. Find number in an array # 6
682. Find Number With Maximum Number Of Divisors
683. Find Numbers with Same Amount of Divisors
684. Find out the longest string chain
685. Find out whether the shape is a cube
686. Find sum of top-left to bottom-right diagonals
687. Find the area of the rectangle!
688. Find the calculation type
689. Find the Capitals
690. Find the discounted prices
691. Find The Duplicated Number in a Consecutive Unsorted List - Tougher Version
692. Find the force of gravity between two objects
693. Find the Golden Ticket!
694. Find the hobbits!
695. Find the Integral
696. Find the Location for the Wildlife Study
697. Find the longest gap!
698. Find The Max Sum Of Contiguous-Submatrix In a Matrix - Ultimate Version
699. Find the Middle of the Product
700. Find the Mine!
701. Find the missing element between two arrays
702. Find the missing term in a Geometric Progression
703. Find the missing term in an Arithmetic Progression
704. Find the Most Probable Sum Value or Values, in Rolling N-dice of n Sides
705. Find the motif in DNA sequence.
706. Find the Nexus of the Codewars Universe
707. Find the Nth longest string in an Array
708. Find the odd int
709. Find The Parity Outlier redux
710. Find the position!
711. Find the smallest
712. Find the sum of the roots of a quadratic equation
713. Find the Word Pair!
714. Find Transcription Factors
715. Find whether there is a route between two nodes in a graph
716. Find within array
717. Find X
718. Finding North
719. Finding Remainder Without Using '%' Operator
720. Finding the Closest Maximum Values of a Function to an Upper Limit
721. Finish this Mini Sudoku
722. First n Prime Numbers
723. First-Class Function Factory
724. Fix arithmetic progression
725. Fix array sequence
726. Fix string case
727. Fix your code before the garden dies!
728. Fixed length palindromes
729. FIXME: Get Full Name
730. Fizz Buzz - Without ifs
731. Fizz Buzz Reloaded
732. FizzBuzz Backwards
733. Flexible Card Game
734. Flight incident probabilities
735. Floating-point Approximation (II)
736. FloatStream
737. Fly as fast as you can
738. Follow that Spy
739. Following Sierpinski's Footprints
740. Following the Paths of Numbers Through Prime Factorization
741. Food combinations
742. For the sake of argument
743. For Twins: 1. Types
744. For UFC Fans (Total Beginners): Conor McGregor vs George Saint Pierre
745. Format data value
746. Format Text
747. Forming a Magic Square
748. Four Pass Transport
749. Foxes and rabbits
750. Free pizza
751. Frequency Analysis With Buckets
752. Freudian translator
753. Friday the 13th Part 1
754. Frugal Pizza
755. Fruit Machine
756. Fruit string calculator
757. Fuel economy converter (mpg <-> L/100 km)
758. Fuel usage reporting
759. Fun with ES6 Classes #1 - People, people, people
760. Fun with ES6 Classes #2 - Animals and Inheritance
761. Fun with ES6 Classes #3 - Cuboids, Cubes and Getters
762. Fun with ES6 Classes #4 - Cubes and Setters
763. Function Cache
764. Function Wrappers: Inline Testing
765. Function Wrappers: pool
766. Function.prototype.clone
767. Functional Addition
768. Functional Binary Trees
769. Functional Lists
770. Functions of Integers on Cartesian Plane
771. functions waterfall!
772. Funny jubilees
773. Future
774. Game Hit the target - 2nd part
775. Gaussian primes
776. Generate a random number (the hard way!)
777. Generate An Array of Unique Strings
778. Generate range of integers
779. Generate user links
780. Generating Generators - Generators #3
781. Generic Ball Clock
782. Genetic Algorithm Series - #1 Generate
783. Genetic Algorithm Series - #3 Crossover
784. Geohashing
785. Geometric Mean I
786. Geometric Progression Sequence
787. Geometry Basics: Circle Area in 2D
788. Geometry Basics: Distance between circles in 2D
789. Geometry Basics: Distance between points in 3D
790. Geometry Basics: Triangle Area in 2D
791. Geometry Basics: Triangle Perimeter in 2D
792. Gerrymander Solver
793. Get all array elements except those with specified indexes
794. Get angle between hour and minute hands
795. Get array elements with specified keys
796. get ascii value of character
797. get character from ASCII Value
798. Get Password from grid
799. Get root property name
800. Get Smallest Common Factor
801. Get the Excel column title!
802. Get the Grid Coordinates
803. Get your steppin' on son
804. Get Zodiac Sign
805. Getting along with Bernoulli's numbers
806. Give me a Diamond
807. Give me DST !!!
808. Give me the k first digits. Odd digits.
809. Global estimates
810. Goldbach’s Conjecture
811. Gotta start somewhere - Code Tracker #1
812. GPS Navigation
813. Grandpa's pants
814. Graphics Series #1: barcode EAN-13 part1
815. Graphics Series #2: barcode EAN-13 part2
816. Graphics Series #3: Repair the LED display
817. Graphics Series #4: Fireworks
818. Graphics Series #5: The rope is burning
819. Graphics Series #6: Traffic lights check
820. Grasshopper - Function syntax debugging
821. Grasshopper - Object syntax debug
822. Grasshopper - Terminal Game #1
823. Greatest Common Factor of an Array
824. Greatest Difference
825. Green Glass Roof- Puzzles #6
826. Grocer Grouping
827. Group Repeating Fractions
828. Gryffindor vs Slytherin Quidditch Game
829. Guess the array
830. Guess the list pattern #2
831. Guess the number!
832. Hack My Account!
833. Hacker's job
834. Haiku Wizard
835. Half Life
836. Hall Of Fame
837. Hamming(7,4) code - Message encoding
838. Hamster me
839. Handy Toolbox for Kata authors
840. Hangman
841. Hangman game
842. Hangŭl Unicode From Jamo Values
843. Hannah vs. Snooze Button
844. Happy New Year, 2018 !!
845. Happy numbers
846. Happy numbers to the n power
847. Hard Time Bomb
848. Harry and the Mathematician's Chicken
849. Haskell scanl function
850. heggeleggleggo
851. Hello Happy Codevarrior!
852. Help Mrs Jefferson
853. Help Green Lantern with his web site
854. Help Kiyo きよ solve her problems LCM Fun!
855. Help Mr. E
856. Help Mr... Dr. Strange to bargain!
857. Help Suzuki pack his coal basket!
858. Help Suzuki purchase his Tofu!
859. Help the general decode secret enemy messages.
860. Help your fellow warrior!
861. Help Yumi collect all the rings. Part 1
862. Heroes of Might & Magic II: One-on-One
863. Heroes of Might & Magic II: Chain Lightning
864. Hex class
865. Hex to base64
866. Hex Word Sum
867. hidden key
868. Hide from the Sun
869. Hide password from jdbc url
870. Hide phone numbers
871. Highest number with two prime factors
872. Hit Count
873. Hofstadter Q
874. Hold'em Holecard Combinatorics
875. Holiday IV - Leg Room
876. Holiday VI - Shark Pontoon
877. Holiday X - Bintang Vests
878. Hollow Triangle
879. Homogenous arrays
880. Horror Top Trumps (card game)
881. House of cards
882. How deep do these trees even go?
883. How far can you pedal a bike???
884. How Green Is My Valley?
885. How long should you cook this for?
886. How long will it take the train to reach its final destination?
887. How low do you go?
888. How many consecutive numbers are needed?
889. How many cows do you have?
890. How Many Differences of Squares?
891. How many dots are covered
892. How many eggs?
893. How many feelings?
894. How many numbers III?
895. How Many Numbers?
896. How Many Numbers? II
897. How many palindromes can you find ? (performance)
898. How many times should I go?
899. How much coffee do you need?
900. How much Wood?
901. How old will I be in 2099?
902. HTML DOM: Part 1 - Tree
903. HTML DOM: Part 2 - Attributes
904. Human Friendly Random Numbers
905. Human readable duration format
906. Human readable working hours
907. Hungarian Vowel Harmony (harder)
908. I guess this is a 6kyu kata #10: Emotion of sentences
909. I guess this is a 6kyu kata #2: Merge strings
910. I guess this is a 6kyu kata #3: Trim the Christmas tree
911. I guess this is a 6kyu kata #5: Whac-A-Mole
912. I guess this is a 7kyu kata #1: Search result
913. I guess this is a 7kyu kata #4: Find 0 and 1
914. I guess this is a 7kyu kata #6: Fruit Ninja I
915. I love big nums and I cannot lie
916. I need a lookup quick!
917. I need more speed!
918. I Promise Not To Optimize
919. I Spy
920. I'm already Tracer
921. I'm longer than you!
922. Ideal electron distribution
923. Identify the array's ordering
924. Image Files Only
925. Image Processing
926. Imaginary Base Conversion
927. Imperfect Fibonacci Rabbits
928. Imperfect Network #1 (duplicate messages)
929. Imperfect Network #2 (out-of-order messages)
930. Implement "The Match" to assign med school graduates to hospitals
931. Implement brute force protection
932. Implement Debounce
933. Implementing a Queue
934. Implementing a Queue - Performance Version
935. Implied Probability from Fractional Betting Odds
936. Indexed capitalization
937. Infinite Diceworks: MeanMaxing your rolls
938. Infinite Diceworks: MeanMaxing your rolls (Quantum Mechanically)
939. Infinite Sequences
940. Ins and Outs--Play game Series #6:
941. Insane Coloured Triangles
942. Insane Permutation Promenade (from AoC 2017 Day 16)
943. Insert Dashes 2
944. Insert into xml object - xml #3
945. Insert value into an array
946. Inserting multiple strings into another string
947. Inspiring Strings
948. Instant Runoff Voting
949. Integer depth
950. Integer reduction
951. Integer to Musical Pitch Classes
952. Integer triangles
953. Integer Triangles Having One Angle The Double of Another One
954. Integer with the longest Collatz sequence
955. Integers Sum Square
956. Interactive Dictionary
957. Interesting Pyramid
958. Interlaced Spiral Cipher
959. Invalid Input - Error Handling #1
960. IP Validation
961. IPv6 address validation and contraction
962. IPv6 validator
963. Is a Prime?
964. Is Divisible By 6 Mk II
965. Is Integer Array?
966. Is It In?
967. Is n divisible by (...)?
968. Is there a sequence re-occuring in the list
969. Is there an arrow missing ? (Relations - Part1: Reflexivity)
970. Is this working?
971. Is Undefined?
972. Is your period late?
973. isAN(value)
974. isInt32(int, byteLength)
975. ISRC - Significant Figures
976. isReallyNaN
977. It's Full of Stars
978. Iterative Rotation Cipher
979. Japanese Romaji-to-Hiragana Converter
980. Java format Unicode encoder/decoder
981. JavaScript class-like objects
982. Javascript filter - 1
983. Javascript filter - 2
984. Javascript filter - 3
985. Javascript from the Inside #1 : Map
986. Javascript from the Inside #2: Filter
987. Javascript Mathematician
988. JavaScript seems to be broken
989. Jewel Thief
990. John and Ann sign up for Codewars
991. Join command (simplified)
992. Jokes you've been 'awaiting' for ... promise
993. Josephus Permutation
994. Josephus Survivor
995. JS Golfing #1: undefined
996. JS Golfing #2: Math.floor
997. JS Golfing #3: Math.round
998. JS Golfing #4: Math.random
999. JS Golfing #5: A Million Times
1000. JS Golfing #6: String Summation
1001. JS Golfing #7: Join
1002. JS Golfing #8: Is it Uppercase?
1003. JSON Account Updater
1004. JSON Parser
1005. Jumble words
1006. Jump!
1007. Jumping Kangaroos
1008. Jumping Number (Special Numbers Series #4)
1009. Jurassic Word
1010. Just Adding and Multiplying
1011. Kama Sutra Cipher Helper
1012. Kaprekar Split
1013. Kaprekar's Routine
1014. Karnaugh's detonating timer (a k-map primer)
1015. Kata Impossible I - The Impossible Lottery
1016. Kebabize
1017. Keypad horror
1018. Keys, their drawings and ancient symbols
1019. Keyword Cipher Helper
1020. Kids and candies
1021. KISS - Keep It Simple Stupid
1022. Knapsack Part 1 - The Greedy Solution
1023. Kushim the Accountant: Extract $ values from text
1024. L1: Bartender, drinks!
1025. Large Factorials
1026. Larger Product or Sum
1027. Largest Cross Sum
1028. Largest Elements
1029. Largest Palindromic Product
1030. Largest product in a series
1031. Last
1032. Last and rich in circle
1033. Last Digit of an Array
1034. Last digit of a huge number
1035. Last digit symmetry
1036. Lat/Long Parser
1037. Laxative Shot Roulette
1038. Lazy Chain
1039. Lazy evaluation
1040. Left$ and Right$
1041. Let's Play Darts!
1042. Lexicographic Permutations
1043. Life without primes
1044. Limit string length - 1
1045. Line Segments Intersection Point
1046. Line, Normalization
1047. Linear Equation Solver
1048. Linear Regression of Y on X
1049. Link Up--Play game Series #7
1050. Linux history and ! command. Series#1 The !! command
1051. Linux history and ! command. Series#2 The !n command
1052. Linux history and ! command. Series#3 The !-n command
1053. Linux history and ! command. Series#4 The !string command
1054. Linux history and ! command. Series#5 The !?string command
1055. List Comprehensions
1056. Lists and Objects - Top Trump Optimizer
1057. Live and Let Dice ...roll
1058. Live Chess Ratings
1059. Localize The Barycenter of a Triangle
1060. Logic Calculator - Puzzles #3
1061. Logical Disjunctions
1062. Logistic Map
1063. Long Division
1064. Longest Consecutive Sequence of Squares
1065. Longest palindrome
1066. Longest Word in Dictionary
1067. Loose Change
1068. Loose Change!
1069. Lost number in number sequence
1070. Lottery machine
1071. Lottery Ticket
1072. Lowercase strings in array
1073. Lowest product of 4 consecutive numbers
1074. LRU Cache
1075. Lucas numbers
1076. Lucas-Lehmer Test for Mersenne Primes
1077. Lucky Sevens
1078. Lychrel numbers
1079. LZW Compression - Squeeze that data!
1080. LZW Compression (and decompression)
1081. Mad Max: Recursion Road
1082. Madhav array
1083. Magic Square Validator
1084. Magic The Gathering #2: Mana
1085. Magic The Gathering #3: Spell Stack
1086. Mahjong - #2 Seven-pairs
1087. Mahjong - #3 How far from winning
1088. Mahjong - #4 Play with imagination!
1089. Mahjong winning hand Validation #1: DA SI XI(大四喜)
1090. Mahjong winning hand Validation #2: DA SAN YUAN(大三元)
1091. Mahjong winning hand Validation #4: JIU LIAN BAO DENG(九莲宝灯)
1092. Mahjong winning hand Validation #5: YI SE SI BU GAO(一色四步高)
1093. Make a 1 to n sequence
1094. Make a Palindrome
1095. Make a square box!
1096. Make Object Into Iterable Array
1097. Make the Deadfish Swim
1098. Make the small words big!
1099. Making Change
1100. Making Change: Part 2
1101. Making Copies
1102. Making squares with lines
1103. Man in the west
1104. Manage the Robot Factory: Day 1
1105. Manipulate URL Parameters
1106. Many Maps As One
1107. Map and Filter to Get a Special Sequence of Integers
1108. Map function issue
1109. Marching armies
1110. Markings to White Triangles and How to Find Them
1111. Masquerade Waiting Line
1112. Master your primes: sieve with memoization
1113. Math Issues
1114. Math Object Madness
1115. Matrix creation
1116. Matrix Multiplier
1117. Matrix Rotation
1118. Matrix Square Up, B!
1119. Max number of people and year in a specific place
1120. Max-min arrays
1121. Maxed Out
1122. Maximum Product of Parts
1123. Maximum Product
1124. Maya Number Converter
1125. Memesorting
1126. Memoized Log Cutting
1127. Memory Reallocation
1128. Merge two arrays
1129. MergeSort "merge" function
1130. Message from Aliens
1131. Meta-Kata: Duplicate Detector v0.1
1132. Metaprogramming: Lisp-style Generic Functions
1133. Mid-Endian numbers
1134. Midpoint inception
1135. Midtown Navigator
1136. Miles per gallon to kilometers per liter
1137. Milliseconds
1138. Min or Max of . . .
1139. Mind the Gap
1140. Mine Sweeper
1141. Minimum dollar bill's count
1142. Minimum Number of Coins
1143. Minimum path in squares
1144. Minimum Reduction
1145. Minimum Steps (Array Series #6)
1146. Minimum unfairness of a list/array
1147. Miracle Sort
1148. Missing Alphabet
1149. Missing Angle
1150. Missing number in Unordered Arithmetic Progression
1151. Mission: Hidden Message
1152. Mixbonacci
1153. mkdir -p
1154. Mnemo Passwords : pwgen
1155. Mnemonic Lookup
1156. Modulo operations of big Numbers
1157. Monads: The Maybe Monad
1158. Monads: The list monad
1159. Money Match: Double or Nothing
1160. Mongodb ObjectID
1161. Monkey Talk
1162. Monkey Tennis - The Aftermath
1163. Monkey's MATH 01: How many "ZERO"s?
1164. MONTE CARLO 3D
1165. month name story
1166. Months, Weeks, Days, Hours and Minutes
1167. Most Consecutive Zeros of a Binary Number
1168. Most frequently used words in a text
1169. Mount Events in ReactJS
1170. Moves in squared strings (I)
1171. Moves in squared strings (II)
1172. Moves in squared strings (III)
1173. Moves in squared strings (IV)
1174. MTV Cribs
1175. Multi Line Task: Fizz Buzz
1176. Multi Line Task: GCD Function
1177. Multi Line Task++: Hello World
1178. Multi Line Task∞: Hello World
1179. Multiple implications
1180. Multiple remainder of the division
1181. Multiples by permutations
1182. Multiples By Permutations II
1183. Multiples of 3 and 5 redux
1184. Multiplication - Generators #2
1185. Multiplicative Persistence... What's special about 277777788888899?
1186. Multiply list by integer (with restrictions)
1187. Multiply the number
1188. Multiply Word in String
1189. multiply(value, times)
1190. Mutate My Strings
1191. Mutual Recursion
1192. myjinxin katas #001 : Rotate, Remove, Return
1193. myjinxin katas #002 : Hotel room number
1194. myjinxin katas #003 : Crossword puzzle
1195. myjinxin katas #004 : Soldier's queue training(easy version)
1196. myjinxin katas #005 : Age Of Wind
1197. myjinxin's Fairy tales #001 : Aladdin's lamp and three wishes
1198. myjinxin's Fairy tales #002 : Ali Baba and the Forty Thieves I
1199. myjinxin's Fairy tales #003 : Ali Baba and the Forty Thieves II
1200. myjinxin's Fairy tales #004 : Ali Baba and the Forty Thieves III
1201. myjinxin's Fairy tales #005 : The little match girl
1202. Mystery Function
1203. Mystery function #1
1204. Mystery function #2
1205. N High Scores
1206. N smallest elements in original order
1207. n-Bonacci Ratio
1208. N-centered Array
1209. N-Parasitic Numbers Ending in N
1210. N00bify - English to n00b Translator
1211. Name Array Capping
1212. Name on billboard
1213. Name That Integer
1214. Name to Matrix
1215. Natas Recipes
1216. NATO Phonetic Alphabet
1217. Natural Log Approximator
1218. Naughty or Nice?
1219. Needles in a haystack
1220. Negation of a Value
1221. Nesting Structure Comparison
1222. new Deck() of Cards
1223. new IntStorage(byteLength, ints).read(from, count);
1224. new IntStorage(byteLength).write(value, length)
1225. new with apply
1226. Next Featured Number Higher than a Given Value
1227. Next Largest Value (by rearranging the last digit and the last by one if neccessary)
1228. Next Palindromic Number.
1229. Next smaller number with the same digits
1230. Nickname Generator
1231. NIM the game
1232. Ninety Nine Thousand Nine Hundred Ninety Nine
1233. Ninja vs Samurai: Strike
1234. No Loops 1 - Small enough?
1235. No Loops 2 - You only need one
1236. No Return #2: Test the Devices
1237. No Return #3: Solve the Equation
1238. Node.js Async I/O
1239. Non Decomposable Primes as Sums of Perfect Squares
1240. Non-even substrings
1241. None shall pass
1242. noobCode 03: CHECK THESE LETTERS... see if letters in "String 2" are present in "String 1"
1243. noobCode 04: HOT SINGLES...compare two arrays, return the unpaired items !
1244. Normal number
1245. Normalizing Out of Range Array Indexes
1246. Not all but sometimes all
1247. Not prime numbers
1248. Not Quine
1249. Not so black box
1250. Not that obvious summation
1251. Not very secure
1252. Now that's a crib!
1253. Noye's Fludde
1254. NSA Phone Tapping
1255. NSA's Little Puzzle
1256. nth Floyd line
1257. Nth Smallest Element (Array Series #4)
1258. Nth term - Linear Sequences
1259. Nuclear Missile Manager
1260. Number , number ... wait LETTER !
1261. Number climber
1262. Number Decoding
1263. Number Manipulation I (Easy)
1264. Number of anagrams in an array of words
1265. Number of Folds
1266. Number of measurements to spot the counterfeit coin
1267. Number of Palindromic Substrings
1268. Number of Proper Fractions with Denominator d
1269. Number Shortening Filter
1270. number with 3 roots.
1271. Number-like counter
1272. Number-Star ladder
1273. Number.prototype.toDecimal
1274. Numbers and its Reversal Having Same Prime Factors.
1275. Numbers in different systems
1276. Numbers in strings
1277. Numbers that are a power of their sum of digits
1278. Numbers Which Sum of Powers of Its Digits Is The Same Number
1279. Numbers' Plus Pattern
1280. Numerical Palindrome #2
1281. Numerical Palindrome #3
1282. Numerical Palindrome #3.5
1283. Numerical Palindrome #4
1284. Numerology
1285. NxN Connect X
1286. Obfuscation confusion - Bug Fixing #10
1287. Object to Array
1288. object to xml - xml #2
1289. Objectify all the strings
1290. Odd Not Prime
1291. Odd-heavy Array
1292. Odds-Index
1293. Offload your work!
1294. Offspring Traits
1295. Oh come on! Hello world! once again?
1296. Oh dear God! Is it bugged?
1297. Oktober Fest: Bjorg's Got A Drinking Problem
1298. Old Greg's Binary Fingers
1299. Once
1300. One down
1301. One graph or multiple ones ?
1302. One Line : Bit Calculator
1303. One line kata: Sum Multiples of 3 and 5
1304. One Line Task: 'for' fun
1305. One Line Task: Diamond Creator Pro
1306. One Line Task: Making Pizza
1307. One line task: Multiples of 3 and 5
1308. One Line Task: Paint The Walls Of Office
1309. One line task: Square a number Without *, + or Math.pow()
1310. One line task: Square Every Digit
1311. One Line Task: String Isomorphism
1312. One Line Task: The Special Downward Step
1313. One Line Wonder: Sum All Even Fibonacci Numbers
1314. One Line: Even Check
1315. One Variable Second Degree Equation Solver
1316. Ones' Complement
1317. Onion array
1318. Ookkk, Ok, O? Ook, Ok, Ooo!
1319. Operation - Steal the Election!
1320. Optimum coding school location
1321. Oracle: Coin Method
1322. Ordinal Numbers
1323. Ore Numbers
1324. Organise duplicate numbers in list
1325. ORing arrays
1326. Orthogonal Vectors
1327. Pack the box.
1328. PaginationHelper
1329. Palindrome for your Dome
1330. Palindrome integer composition
1331. Palindromes with a slight twist: vowels & consonants assessed separately
1332. Palindromic Mnemonics
1333. Paragraph Setting: Align Left
1334. Parallel resistors
1335. Parity bit - Error detecting code
1336. Parse a linked list from a string
1337. Parse all my XML please - Angular #1
1338. Parse HTML/CSS Colors
1339. Parse this function! - Puzzles #7
1340. Parsing musical notes into MIDI
1341. Partial Word Searching
1342. Partially equal objects
1343. Partition On
1344. Path Finder #2: shortest path
1345. Path Finder #3: the Alpinist
1346. Path Finder #4: where are you?
1347. Path Finder #5: there's someone here
1348. Paths in the Grid
1349. Paul Cipher & Kevin Arnold
1350. PC upgrade specs using HOC in ReactJS
1351. Peak array index
1352. Peel the Pairs
1353. Pentabonacci
1354. Percentage of amino acids
1355. Perfect Square.
1356. Permutation position
1357. Permutation Average
1358. Permutation by number
1359. Permutational Primes
1360. Permutations - Generators #4
1361. Permutations Of An Array And Associated Values
1362. Permute a Palindrome
1363. Personalising Spammy Marketing Emails
1364. Personalized brand list
1365. Physics - Mechanics - Atwood Machines in Series
1366. Piano Kata, Part 1
1367. Piano Kata, Part 2
1368. pick a set of first elements
1369. Pig Sursurunga
1370. Pillow on the Fridge
1371. Ping-Pong service problem
1372. Pinocchio's polygraph.
1373. Pitches and Notes
1374. Pizza Payments
1375. Plants and Zombies
1376. Play FlappyBird : Advance Bravely
1377. Play PacMan : Devour all
1378. Play PingPong : Precise control
1379. Play Tetris : Shape anastomosis
1380. Player Contact Manager
1381. Player Methods - Dungeon crawler #2
1382. Playing with Sets : Complement
1383. Playing with Sets : Equal or Not ?
1384. Playing with Sets : Intersection
1385. Playing with Sets : Sup/Sub
1386. Playing with types
1387. Plenty of Fish in the Pond
1388. Plus - minus - plus - plus - ... - Count
1389. Plus - minus - plus - plus - ... - Sum
1390. Podcast Speed Listening Calculator
1391. Pokemon Go
1392. Pokemon Go - Extended Edition
1393. PokerHelper lvl. 1
1394. Pole Vault Starting Marks
1395. Polish alphabet
1396. Polygon Orientation
1397. Poor man's spreadsheet API
1398. Portion of Array
1399. Possibilities of throwing a coin n times
1400. Possible Triangles Formed with Available Iron Rods
1401. Potenciation
1402. Potion Class 101
1403. Power
1404. Power .bind()
1405. Power 2
1406. Power Laws
1407. Powers of 3
1408. Powers of i
1409. Practical Interview Prep: Binary Search Tree .push()
1410. Pre-FizzBuzz Workout #1
1411. Prefix Permutation
1412. Presentation order
1413. Preserve the order !
1414. Pretty date
1415. Price is right
1416. Price of Mangoes
1417. Prime reduction
1418. Prime reversion
1419. Prime Word
1420. Primes in numbers
1421. Primitive Pythagorean Triples
1422. Primorial Of a Number
1423. Print a Rectangle Using Asterisks
1424. Print count and numbers
1425. Print number with character
1426. PRNG: Linear Congruential Generator
1427. Process Waterfowl Survey Data Results
1428. Product ID from URL
1429. Product of Adjacent Grid Numbers
1430. Product of consecutive Fib numbers
1431. Product Of Maximums Of Array (Array Series #2)
1432. Product of the main diagonal of a square matrix.
1433. Product-Sum Numbers
1434. Program a Calculator #1 - Points in 3D Space
1435. Program a Calculator #2 - 3D Vectors
1436. Progressive Spiral Number Branch
1437. Progressive Spiral Number Distance
1438. Progressive Spiral Number Position
1439. Promises Made and Broken: The Misadventures of Bob the Highly Paid Consultant
1440. Protein Synthesis: From DNA to Polypeptide
1441. Puzzle Fighter
1442. Pythagorean Triplets
1443. PythonSlice
1444. Quadratic Enumerator
1445. Quantum Bogosort
1446. Quartile methods
1447. Queue Battle
1448. Queue time counter
1449. Quick (n choose k) calculator
1450. Quicksum
1451. Quidditch Scoreboard
1452. Quipu Calculator
1453. Random case
1454. Randomize Objects
1455. Range function
1456. Range of Integers in an Unsorted String
1457. Ranking Appointments
1458. Ranking System
1459. Rap-Name Generator
1460. Ratio of Bouncy Numbers
1461. Reach Me and Sum my Digits
1462. React Fun #1: Component types and nesting
1463. React with JSX
1464. Read the time
1465. Readability is King
1466. Readable developer-friendly large numbers
1467. Really Complex Sum
1468. Recurrence by Recursion
1469. Recursion 101
1470. Recursion #1 - Factorial
1471. Recursion #2 - Fibonacci
1472. Recursion: An introduction
1473. Recursive Averages
1474. Recursive Floor Sequence
1475. Recursive Ninja
1476. Recursive Ninja: Warlords edition
1477. Reducing Problems - Bug Fixing #8
1478. Refactored Greeting
1479. Regular Expression for Binary Numbers Divisible by n
1480. Reimplement Multiplication Part 1
1481. Relatively Prime Numbers
1482. Remember
1483. Remove a Specific Element of an Array
1484. Remove All The Marked Elements of a List
1485. Remove duplication
1486. Remove First and Last Character Part Two
1487. Remove Zeros
1488. ReOrdering
1489. Replace Noun Phrases with Pronouns
1490. Represent array of numbers as ranges
1491. Retrieve Ether Balance
1492. Return a sorted list of objects
1493. Return Specifics from an Object.
1494. Return String of First Characters
1495. Return the first M multiples of N
1496. Return TIMESTAMP from date
1497. Reverse a Number
1498. Reverse DNS delegation (RFC4183)
1499. Reverse every other word in the string
1500. Reversed Message
1501. reverseIt
1502. Reverser
1503. Reversi row rudiments
1504. Rithm Series: Frame a Phrase Simple
1505. Roasting Chicken
1506. Robbing Rövarspråket
1507. RoboScript #5 - The Final Obstacle (Implement RSU)
1508. Robotic Tattoo Removal
1509. Rock Paper Scissors Oracle
1510. Roman numerals converter and validator
1511. Romanize Russian Road Signs
1512. ROT13 variant cipher
1513. Rotate Array (JS)
1514. Rotate Corners
1515. Rotate matrix counter - clockwise N - times!
1516. Rotated string
1517. Rotation Cipher Cracker
1518. Round by 0.5 steps
1519. Round to nearest 0 or 5
1520. Route Calculator
1521. Routes in a square grid
1522. Running out of space
1523. RuplesJS #1: N Times Do
1524. RuplesJS #2: String Delete
1525. RuplesJS #3: String EachChar
1526. RuplesJS #4: String Formatting
1527. RuplesJS #5: Range
1528. Russian plurals
1529. Russian postal code checker
1530. Saint Petersburg Paradox Model
1531. Same Birthday Probability
1532. Santa wish list form in ReactJS
1533. SantaClausable Interface
1534. Satisfying numbers
1535. Save Private Brain
1536. Scaling Squared Strings
1537. Scheduling (Round-Robin)
1538. Scheduling (Shortest Job First or SJF)
1539. Schrödinger's Boolean
1540. Scooby Doo Puzzle
1541. Scrambled Numbers Sorting
1542. Scraping: Codewars Top 500 Users
1543. Screen Locking Patterns
1544. Scrolling Text
1545. Search and sort names
1546. search in multidimensional array
1547. Seating arrangement at a Polyglot Summit
1548. Secret Agent 101: The secret password
1549. Secret knock
1550. Secret Message
1551. Secret Reverse Language Converter
1552. See You Next Happy Year
1553. Seeing Shows at the Edinburgh Fringe!
1554. Selective Array Reversing
1555. Selective fear of numbers
1556. self_converge
1557. Semi-Optional
1558. Sentence Calculator
1559. Sentences with Functions
1560. Separate The Wheat From The Chaff
1561. Separating Strings
1562. Sequence convergence
1563. Sequence to 1
1564. Series Forensics
1565. Set - the card game
1566. Seventh JSON of a seventh JSON
1567. Sexy Primes <3
1568. Shakespearean Tug of War
1569. Share prices
1570. Sharpen up
1571. Shop Inventory Manager
1572. Shorten Me: Array Declaration III (Fibonacci Last Digit)
1573. Shorten Me: Array Declaration IV (1-30)
1574. Shorten Me: Array Declaration IX (Variable Types)
1575. Shorten Me: Array Declaration V (Weekday & Weekend)
1576. Shorten Me: Array Declaration VI (Months)
1577. Shorten Me: Array Declaration VII (Alphabets)
1578. Shorten Me: Array Declaration VIII (Musical Scales)
1579. Shorten Me: Array Declaration X (O-I-II)
1580. Shorten Me: Array Declaration XI (Triangle)
1581. Shorten Me: Array Declaration XII (Constants)
1582. Shorten Me: Mad Mathematician's Algorithm VI (Power)
1583. shorter concat [reverse longer]
1584. Shortest Code : Are they symmetrical?
1585. Shortest code : Balance Attraction
1586. Shortest Code : Eat watermelon
1587. Shortest Code : Find the murderer
1588. Shortest Code : Guess the Hat
1589. Shortest Code : Jumping Dutch act
1590. Shortest Code : Planting Trees
1591. Shortest Code : Reading a Book
1592. Shortest Code : Regular expression compression
1593. Shortest Code : Remove screws I
1594. Shortest Code : Special factor
1595. Shortest code : Tidy up the room
1596. Shortest Code : Waiting for a Bus
1597. Shortest code: Bug in Apple
1598. Shortest Code: Collatz Array(Split or merge)
1599. Shortest code: Father and Son
1600. Shortest code: Give me the equation
1601. Shortest code: Max Value
1602. Shortest Code: Symmetric Sort
1603. Shortest Code: Trypophobia
1604. Shortest code: Virus in Apple
1605. Shortest Knight Path
1606. Shortest steps to a number
1607. Shrink the maze!
1608. SillyCASE
1609. Simple division
1610. Simple arithmetic progression
1611. Simple array product
1612. Simple Blackjack
1613. Simple Change Machine
1614. Simple Comparison?
1615. Simple consecutive pairs
1616. Simple CSS selector comparison
1617. Simple digit code breaker
1618. Simple directions reversal
1619. Simple equation reversal
1620. Simple Events
1621. Simple eviternity numbers
1622. Simple fibonacci strings
1623. Simple fraction to mixed number converter
1624. Simple frequency sort
1625. Simple Fun #364: Not Too Random
1626. Simple Fun #365: Remove Number Game I
1627. Simple Fun #377: The Visible Posters II
1628. Simple Interest and Compound Interest
1629. Simple letter removal
1630. Simple Maths Test
1631. Simple max digit sum
1632. Simple Memory Manager
1633. Simple missing sum
1634. Simple nearest prime
1635. Simple non-decreasing array
1636. Simple number sequence
1637. Simple palindrome game
1638. Simple parenthesis removal
1639. Simple Physics Problem
1640. Simple prime streaming
1641. Simple repeated words
1642. Simple reversal game
1643. Simple reversed parenthesis
1644. Simple rotated palindromes
1645. Simple Ruby code formatter
1646. Simple safecracking
1647. Simple Simple Simple String Expansion
1648. Simple string characters
1649. Simple string division
1650. Simple string division II
1651. Simple string expansion
1652. Simple string indices
1653. Simple string matching
1654. Simple string reversal
1655. Simple string reversal II
1656. Simple Substitution Cipher Helper
1657. Simple sum of pairs
1658. Simple template
1659. Simple Time Bomb
1660. Simple time difference
1661. Simple Web Framework #1: Create a basic router
1662. simpleLog
1663. Simplify the number!
1664. Simplifying multilinear polynomials
1665. Simulating a Multiserver Queue
1666. Simultaneous Equations - Three Variables
1667. Single character palindromes
1668. Single character palindromes II
1669. Single-Use Tickets: Don't Let Anyone Sneak In!
1670. Singleton Pattern
1671. Sir , showMe yourID
1672. Slamming Lockers
1673. sliceBits(int, from, count)
1674. Sliding Puzzle Solver
1675. Smallest possible sum
1676. Smart Sum
1677. Smart Toaster
1678. Smith number
1679. SMS Lottery Bet Validator
1680. SMS Shortener
1681. Soccer Fixtures Results Table
1682. Socialist distribution
1683. Solomon's Quest for the Temporal Crystal
1684. Solve For X
1685. solve from sums
1686. Solve Rubik 's Cube by repetition
1687. Solving Quadratics
1688. Some Circles
1689. Something 's fishy...
1690. Sort and Transform
1691. sort array by last character
1692. Sort it out!
1693. Sort rectangles and circles by area
1694. Sort the climbing grades
1695. Sort the Gift Code
1696. Sort the Vowels!
1697. Sorted list
1698. Sorting Arrays by the Amount of Perfect Squares that Each Element May Generate
1699. Sorting the Rabbit Hole
1700. Sorting Time
1701. Space Invaders Underdog
1702. Spanish Conjugator
1703. Spanish Pirates off the Treasure Coast
1704. Sparse Ruler
1705. Sparse array split function
1706. Special Number (Special Numbers Series #5)
1707. Special Multiples
1708. Special Scores For Words
1709. Speech to Text - String Manipulation
1710. SpeedCode #1 - Getters and Setters in Object Literals
1711. SpeedCode #2 - Array Madness
1712. SpeedCode #3 × Fun with ES6 Classes #5 - Dogs and Classes
1713. SpeedCode #4 × Factory Functions #3 - Artefacts
1714. Spider man and his enemy
1715. Spidey Swings Across Town
1716. Spinning Rings
1717. Split an array
1718. Split and then add both sides of an array together.
1719. Split In Parts
1720. Split string for Text-to-Speech API
1721. Split The Bill
1722. Sports league table - help your local team!
1723. Spraying trees
1724. Spy Function
1725. Square sums (simple)
1726. Squarefree Part of a Number
1727. Squares sequence
1728. Stack Safe Recursion
1729. Stargate SG-1: Cute and Fuzzy (Improved version)
1730. Statistics - Fundamentals
1731. Statistics for an Athletic Association
1732. Statistics in Kata 2: AND case - Ball bags
1733. Steer the Ship
1734. Steps in k-primes
1735. Steven's Password Decryption
1736. Stock Position Size Calculator
1737. Stone bridge primes
1738. Stop it, HTML!
1739. Strange roman numbers
1740. String array duplicates
1741. String like [Char]
1742. String basics
1743. String Box
1744. String Breakers
1745. String character frequency
1746. String chunks
1747. String Compression Challenge
1748. String counting
1749. String doubles
1750. String Evaluation
1751. String formatter
1752. String Integer Greater-than
1753. String matchup
1754. String Merge!
1755. String reduction
1756. String Reordering
1757. String Scramble
1758. String subpattern recognition I
1759. String subpattern recognition II
1760. String subpattern recognition III
1761. Strings, strings, strings (Easy)
1762. Strings, strings, strings (Hard)
1763. Stutter function
1764. Sub-array division
1765. Subnet Calculating
1766. Sum #2
1767. Sum decomposition
1768. Sum of (Two) Squares
1769. Sum of a Sequence [Hard-Core Version]
1770. Sum of all arguments
1771. Sum of array singles
1772. Sum of differences between products and LCMs
1773. Sum of differences in array
1774. Sum of integer combinations
1775. Sum of integers in string
1776. Sum of prime-indexed elements
1777. Sum Only Numbers
1778. Sum The Strings: ARRAY EDITION
1779. Sum up the random string
1780. sum2total
1781. Summarize ranges
1782. Summy
1783. Super Class Extensions
1784. Super Smaaassh Brotheerrrs!
1785. Superphore Master
1786. Surface Area and Volume of a Trapezoidal Prism
1787. Sushi-go-round (Beginner's)
1788. Swap the head and the tail
1789. Swap two elements
1790. Swap two numbers
1791. Swarm bots - swarm intelligence #1
1792. Swedish Tipping
1793. Sweet Dreams are Made of Cheese
1794. Switch/Case - Bug Fixing #6
1795. Symbolic differentiation of prefix expressions
1796. Symbols counted
1797. Synchonizing records
1798. T.T.T. #7: Profit or loss
1799. T.T.T. #8: Reverse all
1800. T.T.T. #9: Peaks and valleys
1801. T.T.T.#2: Equal to 24
1802. T.T.T.#3: Three lifts
1803. T.T.T.#4: Key of door
1804. T.T.T.#5: Only you
1805. T.T.T.#6: nth user
1806. T.T.T.10: The largest square
1807. T.T.T.11: Three increasing numbers
1808. T.T.T.12: Split integer
1809. T.T.T.13: A game named "Five,Ten,Fifteen,Twenty"
1810. T.T.T.14: Find the largest "X"
1811. T.T.T.15: Sort the alarm clock
1812. T.T.T.16: Warning of Array.map()
1813. T.T.T.23: Silly birds
1814. T.T.T.24: Chinese surname (《百家姓》)
1815. T.T.T.33: Grandfather clock
1816. T.T.T.38: The sum of each digits
1817. T.T.T.40: m to n % 9
1818. T.T.T.41: The maximum profit
1819. T.T.T.43: The appellation of the Chinese people's age and his zodiac（中国人的年龄和他的生肖称谓）
1820. T.T.T.58: Simple face recognition system
1821. T.T.T.59: The language from the distant planet
1822. T.T.T.60: Break all the rules
1823. T.T.T.61: Alien's magic
1824. Tabs to spaces
1825. Tail Call Optimization
1826. Take an Arrow to the knee, Functionally
1827. Take It or Leave It Interview Strategy
1828. Take the Derivative
1829. Takeshi's Castle Spy: Knock Knock
1830. Talisman Board Game Combat System Checker
1831. Tank coding #1 : simple AIM systems
1832. Tap Into Mr. Mxyzinjin's Brain
1833. Tap Into Mr. Mxyzinjin's Matrix
1834. Tap Into Mr. Mxyzinjin's Safe
1835. Tap into Mr. Mxyzinjin's Stream
1836. Tap Into Mr. Mxyzinjin's Toy Safe
1837. Tap into Reivhax's robot
1838. Temp Tracker: Max, Min, Mean and Mode
1839. Template Strings
1840. Test for semiprime (Mathematics)
1841. Test Your Knowledge Of Function Scope
1842. Test's results
1843. Testing the Porges hypothesis
1844. Texas Hold'em Hands
1845. Text editor feature!
1846. The 'if' function
1847. The (nearly) Perfect Mirror
1848. The 196-algorithm and Lychrel numbers
1849. The answer to life the universe and everything.
1850. The Answer to the Ultimate Question of Life, The Universe, and Everything
1851. The Arpeggiator
1852. The average length
1853. The Baby Years III - First Tooth
1854. The boolean order
1855. The common directory path
1856. The Coupon Code
1857. The Cube Structure
1858. The Deca Tree
1859. The Desperate Rocket Scientist
1860. The Enigma Machine - Part 1: The Plugboard
1861. The fusc function -- Part 1
1862. The fusc function -- Part 2
1863. The good old olden early years
1864. the hidden thief
1865. The Ice Cream Vendors Dilema
1866. The Ladies of ENIAC
1867. The largest "mirror"
1868. The learning game - Machine Learning #1
1869. The longest bracket substring in the string
1870. The map and the keys
1871. The maximum sum value of ranges -- Ultimate version
1872. The money in the bank
1873. The most asked question on CodeWars
1874. The Most Repeated Letter.
1875. The Most Sacred of Days
1876. The observed PIN
1877. The Office II - Boredom Score
1878. The old switcheroo
1879. The old switcheroo 2
1880. The Overlap Time
1881. The Owls Are Not What They Seem
1882. The Power of Exponents
1883. The Prediction
1884. The Queen Of Hearts Challenge
1885. The queen on the chessboard
1886. The rarest pepe
1887. The Rhinestone Cowboy ~ Count the dollars in his boots!
1888. The sortReloaded() method
1889. The Sum and The Rest of Certain Pairs of Numbers have to be Perfect Squares (more Challenging)
1890. The Supermarket Queue
1891. The ugly truth about reduce
1892. The ugly truth about reduce (ii)
1893. The ugly truth about reduce (iii)
1894. The Walker
1895. The wheat/rice and chessboard problem
1896. There are two kinds of people
1897. They say that only the name is long enough to attract attention. They also said that only a simple Kata will have someone to solve it. This is a sadly story #1: Are they opposite?
1898. Thinkful - Logic Drills: Red and bumpy
1899. Thinkful - Number Drills: Blue and red marbles
1900. Thinkful - Object Drills: Vectors
1901. Thinking & Testing #38: What's the "?"
1902. Thinking & Testing : Archery contest
1903. Thinking & Testing : A happy day will come
1904. Thinking & Testing : Digital swimming pool
1905. Thinking & Testing : Falsetto Rap Concert
1906. Thinking & Testing : From nothingness To nothingness
1907. Thinking & Testing : Hail and Waterfall
1908. Thinking & Testing : How many "word"?
1909. Thinking & Testing : How many blocks?
1910. Thinking & Testing : I hate big and small
1911. Thinking & Testing : Incomplete string
1912. Thinking & Testing : Love Forever
1913. Thinking & Testing : Math of Middle school
1914. Thinking & Testing : Math of Primary School
1915. Thinking & Testing : Nebula or Vortex
1916. Thinking & Testing : Not perfect? Throw away!
1917. Thinking & Testing : Operator hidden in a string
1918. Thinking & Testing : Report about something
1919. Thinking & Testing : Retention and discard
1920. Thinking & Testing : Retention and discard II
1921. Thinking & Testing : Safe position
1922. Thinking & Testing : Something capitalized
1923. Thinking & Testing : Spatiotemporal index
1924. Thinking & Testing : Sport Star
1925. Thinking & Testing : Substring Magic
1926. Thinking & Testing : Sum of 15(Hetu Luosliu)
1927. Thinking & Testing : The repair of parchment
1928. Thinking & Testing : True or False
1929. Thinking & Testing : Uniq or not Uniq
1930. Thinking & Testing : Who are you?
1931. Thinking & Testing : Wind whispers
1932. Thinking & Testing: A and B?
1933. This isn't what you think! The Misadventures of Bob the Highly Paid Consultant #2
1934. THIS n' THAT
1935. Three added Characters
1936. Three Dots--Play game Series #8
1937. Throw from list - Error Handling #3
1938. Thue-Morse Sequence
1939. Tic-Tac-Toe Checker
1940. Tic-Tac-Toe-like table Generator
1941. Ticker
1942. Tidy Number (Special Numbers Series #9)
1943. Time Conversion: 12s and 24s
1944. Time Converter: hours, minutes, seconds and milliseconds
1945. Time Degrees
1946. Time Simulation
1947. Timers
1948. To BrainFuck Transpiler
1949. toHonestlyFixed()
1950. ToLeetSpeak
1951. Tom's Allergies
1952. Tombola - validation
1953. Total Resistance in a Parallel Circuit
1954. Touching Rectangles
1955. Tower Defense: Risk Analysis
1956. Track the Ball
1957. Tracking Hits for Different Sum Values for Different Kinds of Dice
1958. Tracking Sums in a Process
1959. Train to remove duplicates from an array with filter()
1960. Training JS #1: create your first JS function and print "Hello World!"
1961. Training JS #10: loop statement --for
1962. Training JS #11: loop statement --break,continue
1963. Training JS #12: loop statement --for..in and for..of
1964. Training JS #13: Number object and its properties
1965. Training JS #14: Methods of Number object--toString() and toLocaleString()
1966. Training JS #15: Methods of Number object--toFixed(), toExponential() and toPrecision()
1967. Training JS #16: Methods of String object--slice(), substring() and substr()
1968. Training JS #17: Methods of String object--indexOf(), lastIndexOf() and search()
1969. Training JS #18: Methods of String object--concat() split() and its good friend join()
1970. Training JS #19: Methods of String object--toUpperCase() toLowerCase() and replace()
1971. Training JS #2: Basic data types--Number
1972. Training JS #20: Methods of String object--charAt() charCodeAt() and fromCharCode()
1973. Training JS #21: Methods of String object--trim() and the string template
1974. Training JS #22: Unlock new skills--Arrow function,spread operator and deconstruction
1975. Training JS #23: methods of arrayObject---push(), pop(), shift() and unshift()
1976. Training JS #24: methods of arrayObject---splice() and slice()
1977. Training JS #25: methods of arrayObject---reverse() and sort()
1978. Training JS #26: methods of arrayObject---map()
1979. Training JS #27: methods of arrayObject---filter()
1980. Training JS #28: methods of arrayObject---every() and some()
1981. Training JS #29: methods of arrayObject---concat() and join()
1982. Training JS #3: Basic data types--String
1983. Training JS #30: methods of arrayObject---reduce() and reduceRight()
1984. Training JS #31: methods of arrayObject---isArray() indexOf() and toString()
1985. Training JS #32: methods of Math---round() ceil() and floor()
1986. Training JS #33: methods of Math---max() min() and abs()
1987. Training JS #35: methods of Math---log() and its family
1988. Training JS #36: methods of Math---kata author's lover:random()
1989. Training JS #37: Unlock new weapon---RegExp Object
1990. Training JS #38: Regular Expression--"^","$", "." and test()
1991. Training JS #39: Regular Expression--"?", "*", "+" and "{}"
1992. Training JS #4: Basic data types--Array
1993. Training JS #40: Regular Expression--"|", "[]" and "()"
1994. Training JS #41: Regular Expression--""
1995. Training JS #42: Regular Expression--( ?: ), ( ?= ) and ( ?! )
1996. Training JS #5: Basic data types--Object
1997. Training JS #6: Basic data types--Boolean and conditional statements if..else
1998. Training JS #7: if..else and ternary operator
1999. Training JS #8: Conditional statement--switch
2000. Training JS #9: loop statement --while and do..while
2001. Training Random Testcases #2: Palindrome string
2002. Tram Capacity
2003. Transform To Prime
2004. Transforming Maze Solver
2005. Translate DNA in 6 frames
2006. Transpose of a Matrix
2007. Traverse array elements diagonally
2008. Treasure Box
2009. Tree Depth
2010. Tree Directory
2011. Triangle Line Task: Fizz Buzz
2012. Triangle of Multiples (Easy One)
2013. Triangle type
2014. Triangular matrices.
2015. Tribonacci Sequence
2016. Triple Shiftian Numbers
2017. Triple trouble
2018. Troll Mystery Encoding
2019. Truck driving time(Level I)
2020. Trucks Driver Time.
2021. True Addition
2022. True Min
2023. Trumpness detector
2024. Truncate a string!
2025. Tube strike options calculator
2026. Turn any word into a beef taco
2027. TV channels
2028. Twice Their Age
2029. Two arrays -- Zero rows and zero columns
2030. Two cube sums
2031. Two's complement
2032. Two's Complement
2033. Type of sum
2034. Typoglycemia Generator
2035. UN-usual Sort
2036. Unary function chainer
2037. Understanding closures - the basics
2038. Unicode Madness: 東方名確認　～ Eastern Title Validator.
2039. UniDecoder
2040. Union of Intervals
2041. Unique digits sequence
2042. Unique string characters
2043. Unique Sum
2044. uniquePush - No Dupes!
2045. Unit-Test Inception
2046. Unix command line ls -l extract the file type.
2047. Unlucky Days
2048. Unpacking Arguments
2049. Unsecure login - Hack this code #1
2050. Unshackle the Beast (uncontrolled components in ReactJS)
2051. up AND down
2052. upperCasePlace()
2053. Upside down numbers
2054. Upside-Down Numbers - Challenge Edition
2055. Upside-Down Pyramid Addition...REVERSED!
2056. Upstream/Downstream
2057. Upturn Numeral Triangle
2058. Urban Dictionary
2059. URI codec (encode/decode)
2060. UriBuilder
2061. UVB-76 Message Validator
2062. Valid Curly Braces (Code Golf)
2063. Valid GB number plate?
2064. Valid HK Phone Number
2065. Vending Machine
2066. Vertical symmetry on coordinate plane
2067. Visa application centre
2068. Visible Dots On a Die
2069. Volume of a Cuboid
2070. Vowel Alternations
2071. Vowel one
2072. Vowel Shifting
2073. Vowel-consonant lexicon
2074. Walk-up Stairs
2075. Walter's miraculous FizzBuzz factory
2076. Warm Up for Speed.
2077. Warrior's adventure
2078. Waving the Stream
2079. We are Family
2080. We are the Robots d[(0)(0)]b
2081. We need these data immediately!
2082. Weight of its Contents
2083. Weighted Grading System
2084. Weird Factory
2085. Welcome to Economics! #1 Consumer Price Index
2086. Welcome to Economics! #2 Economic Surplus
2087. What Happened To My Object?
2088. What happened to the vowels?
2089. What The Biggest Search Keys?
2090. What's a Perfect Power anyway?
2091. What's in a name?
2092. What's the pattern?
2093. What’s the degree?
2094. When's my birthday ?
2095. When's the next train to Brighton?
2096. Where did my Ether go?
2097. Where do they meet?
2098. Which are in?
2099. Which Gas Station should I pick?
2100. Whitespace Interpreter
2101. Who ate the cookie?
2102. Who can still win the Formula One World Championship?
2103. Who is going to pay for the wall?
2104. Who wins the card game?
2105. Whole of Names
2106. Whose bicycle?
2107. Word Challenges at School
2108. Word Finder
2109. Word Segmentation: MaxMatch
2110. Wordify an integer
2111. Wordsearch
2112. WordSquare
2113. Working With Coloured Numbers
2114. Working With Coloured Numbers II
2115. Working with Dictionaries
2116. World Bits War
2117. World Rally Championship
2118. Wrapped Function
2119. Write a function to sort a given string into alphabetical order
2120. Write a letter to your friend (给远方的朋友写封信)
2121. Write out numbers
2122. X marks the spot!
2123. X plus Y Card problem
2124. xml to object - xml #1
2125. XOR string reduction
2126. YaCG: #1 Yet another Card Kata !
2127. YaCG: #2 One Trick, One Taker.
2128. YaCG: #3 "no elephant were harmed..."
2129. Yes No Yes No
2130. You are a Cube!
2131. You Can't Code Under Pressure #2
2132. You're not my type
2133. Your Ride Is Here
2134. Zebulan's Nightmare
2135. Zero fill... for the Queen!
2136. zero-balanced Array
2137. Zeros and Ones
2138. Ziggurat Ride of Fortune
2139. Zonk game

List of Node 12.x Kata

The following failed to upgrade to Node 14.x/18.x automatically.

1. Bresenham Circle Algorithm
2. Ludicrous Coloured Triangles

List of Node 10.x kata

The following failed to update automatically by prepending const Test = require('@codewars/test-compat'); to tests.

1. Brick by Boring Brick - Mathematical expression interpreter
2. Game of Go
3. Greedy seller's quotes -- update available
4. How can I throw an error here? -- update available
5. Implementing Object.create -- update available
6. Lempel–Ziv–Welch
7. longest_palindrome
8. Mad Mathematician's Calculator (Basic Version)
9. Mad Mathematician's Calculator (Hardcore Version)
10. Mean Means
11. one line task : date converter (not that date, the other one)
12. Papers, Please
13. Save the Spice Harvester (Dune Universe)
14. Simple Fun #242: Caesar Box Cipher Encoding -- update available
15. Simple Fun #379: Division -- update available
16. splicing
17. Stable Weight Arrangement
18. The Coins of Ter | Round to the Next N