Leap Years in JavaScript in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 222nd tscherter 854 48 9ms 6 Dec 2020 222nd stadamdoki 854 48 10ms 6 Apr 2021 222nd devinwelch 854 48 9ms 7 Oct 2021 222nd Michal-Miky-Jankovsky 854 48 9ms 20 Nov 2021 222nd ThibWillFulll 854 48 10ms 5 May 2022 222nd iliazeus 854 48 9ms 3 Sep 2022 222nd FilipMyhren 854 48 9ms 23 Nov 2022 222nd FrederikHutfless 🇩🇪 854 48 9ms 22 Dec 2022 222nd Igyeom 🇰🇷 854 48 9ms 12 Jun 2023 222nd Isaac-NTT 854 48 8ms 7 Jul 2023 222nd AndFly33 854 48 9ms 7 Jul 2023 222nd AustinH-Ntt 854 48 9ms 7 Jul 2023 222nd johnburton0517 854 48 8ms 7 Jul 2023 222nd coreynash 854 48 8ms 27 Oct 2023 222nd sparksis 🇨🇦 854 48 10ms 20 Nov 2023 222nd TheLastZombie 854 48 9ms 15 May 2024 222nd Jacob385 854 48 9ms 3 Sep 2024 222nd eranws 854 48 9ms 23 Dec 2024 244th juntuu 837 49 9ms 24 Mar 2019 244th Mikaeel66 837 49 9ms 11 Nov 2019 244th jeffreymeng 837 49 9ms 24 Nov 2019 244th Kibble 837 49 9ms 11 Jul 2020 244th richard-oelze 🇩🇪 837 49 9ms 11 Jul 2020 244th masashimachida 837 49 9ms 29 Jul 2020 244th ArmaanAS 837 49 9ms 8 Mar 2021 244th RedstoneTim 837 49 10ms 26 Jun 2021 244th Foxinatel 837 49 9ms 22 Aug 2021 244th olivermrose 🇺🇸 837 49 9ms 23 Aug 2021 244th lukaskairys 837 49 9ms 25 Sep 2021 244th Giga-Bowser 837 49 9ms 5 Jan 2022 244th c0d3-4-F00d 🇩🇪 837 49 9ms 9 Feb 2022 244th TheRealOhead 🇺🇸 837 49 9ms 31 Mar 2023 244th Inbarw100 837 49 9ms 10 Jun 2023 244th Evankhell0 837 49 8ms 28 Jul 2023 244th NickTheEASDude 🇺🇸 837 49 9ms 18 Jan 2024 244th dijs 837 49 9ms 8 Mar 2024 244th xyangst 837 49 9ms 26 Sep 2024 244th ffelixm 837 49 9ms 30 May 2025 244th a6166231 🇨🇳 837 49 8ms 3 Jun 2025 244th JOrE20 🇺🇸 837 49 9ms 16 days ago 266th mikerees 820 50 9ms 1 Aug 2019 266th jakobwitte 820 50 9ms 5 Mar 2020 266th vgroen 820 50 10ms 31 May 2020 266th ibeucaly 820 50 8ms 22 Oct 2021 266th Romain-1 🇫🇷 820 50 9ms 29 Apr 2022 266th 7f-galaxii 820 50 9ms 7 Dec 2022 266th dgerblick 820 50 8ms 16 Jun 2023 266th deniz-blue 820 50 9ms 20 Oct 2023 266th SpiritAxolotl 🇺🇸 820 50 9ms 21 Mar 2024 266th codingisgreatbutiamnot 820 50 8ms 14 Aug 2024 266th henrygagnier 820 50 8ms 19 Nov 2024 266th alexsave 820 50 8ms 13 Oct 2025 278th ly0va 804 51 10ms 6 Jan 2019 278th tomh1012 804 51 8ms 5 Sep 2020 278th VegaQ8 804 51 9ms 26 Nov 2020 278th Seanharrs 804 51 9ms 15 Dec 2021 278th fourth-bit 804 51 9ms 14 Jan 2022 278th Ashikpaul 🇮🇳 804 51 11ms 24 Jul 2022 278th Bananapants22 804 51 8ms 20 Aug 2022 278th GreenBeansAgainstVeganism 804 51 8ms 14 Jan 2023 278th daniel-cardone 804 51 9ms 24 Aug 2023 278th Florian-Mt 804 51 8ms 29 Sep 2023 278th sulphemi 804 51 9ms 5 Mar 2024 278th dtbao20 🇻🇳 804 51 9ms 1 Oct 2024 278th Ralac07 🇦🇺 804 51 9ms 27 Oct 2025 291st Chegleyev 788 52 9ms 2 Feb 2020 291st abcxff 788 52 9ms 11 Apr 2021 291st mandm-pt 788 52 9ms 1 Jul 2021 291st Destrings2 🇨🇴 788 52 9ms 14 Jul 2021 291st stefangabos 🇷🇴 788 52 9ms 15 Jul 2021 291st aazuspan 788 52 9ms 3 May 2022 291st Ephellon 788 52 9ms 2 Dec 2022 291st ShiraJoseph 🇺🇸 788 52 9ms 12 Apr 2023 291st lewdev 🇺🇸 788 52 9ms 3 Jul 2024 291st UllmaDan 788 52 8ms 27 Aug 2024 First Prev 226–300 of 474 Next Last