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 Multitap Input NFA Simulator Numbrix 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 Multitap Input NFA Simulator Numbrix 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 293rd lewdev 🇺🇸 788 52 9ms 3 Jul 2024 293rd UllmaDan 788 52 9ms 27 Aug 2024 303rd McErer 774 53 9ms 11 Jan 2019 303rd felixpackard 774 53 9ms 15 Mar 2020 303rd dylanpyle 774 53 9ms 28 Apr 2020 303rd dsntzn 🇸🇰 774 53 9ms 9 Aug 2020 303rd SkimnerPhi 774 53 8ms 5 Dec 2020 303rd pbarath 774 53 9ms 6 Apr 2021 303rd 23rdIdiot 774 53 9ms 28 Aug 2021 303rd liamstrilchuk 774 53 9ms 7 Sep 2021 303rd AnnoyedArt1256 774 53 9ms 12 Jan 2022 303rd JayantaNath 774 53 9ms 13 May 2022 303rd blobotic 774 53 9ms 13 Jun 2023 303rd malworthy 774 53 9ms 18 Oct 2023 303rd jbdrucker 774 53 9ms 15 Feb 2025 303rd smclaughlin-cf 774 53 8ms 20 Feb 2025 303rd MadScience137 774 53 9ms 24 Sep 2025 303rd gigaprofisi 🇺🇸 774 53 9ms 4 Nov 2025 319th rowboat1 759 54 8ms 16 Feb 2019 319th paudr 759 54 9ms 5 May 2019 319th VFDan 759 54 8ms 22 May 2019 319th cryosis7 759 54 8ms 20 Jun 2019 319th bac0id 759 54 9ms 17 Jun 2020 319th fabrice404 759 54 9ms 16 Jul 2020 319th itiievskyi 🇺🇦 759 54 9ms 5 Aug 2020 319th i-machine 759 54 9ms 28 Aug 2020 319th DizzyLeChuck 759 54 9ms 9 Sep 2020 319th eecb 759 54 9ms 24 Nov 2020 319th mrmena 🇦🇺 759 54 8ms 10 Jul 2021 319th mobibluman 759 54 8ms 27 Aug 2021 319th johanrosenson 759 54 9ms 8 Dec 2021 319th kevdah 759 54 9ms 8 May 2022 319th Ripick 759 54 9ms 13 Aug 2022 319th msbranicky 759 54 9ms 6 Jul 2023 319th JakeReadman 759 54 9ms 18 Jul 2024 319th hippopotam00sehead 🇨🇦 759 54 9ms 11 Sep 2024 337th nastion 745 55 8ms 15 Jan 2019 337th pg98 745 55 9ms 4 Sep 2019 337th sage-fulcher 745 55 9ms 20 Apr 2020 337th Pablo-No 745 55 8ms 15 Jul 2020 337th sech1p 🇵🇱 745 55 9ms 29 Oct 2020 337th aaronze 🇦🇺 745 55 9ms 26 Apr 2021 337th lukalotl 745 55 9ms 24 May 2021 337th berdzi 745 55 9ms 15 Mar 2022 337th delgoodie 745 55 9ms 26 Aug 2022 337th Sora1248 🇩🇪 745 55 8ms 19 Feb 2023 337th logancammish 745 55 9ms 21 Mar 2023 337th pandaninjas 745 55 9ms 9 Aug 2023 337th yb1yb1 745 55 9ms 7 Oct 2024 350th 7JoeEdwards 732 56 9ms 1 Aug 2019 350th jmhowl 732 56 9ms 17 Dec 2019 350th RonnyPumaricra 732 56 9ms 25 Nov 2020 350th glorpglob 732 56 9ms 5 Feb 2021 350th kayahr 732 56 8ms 18 Jun 2021 350th RegularSalamander 732 56 8ms 29 Jan 2022 350th TheCod-r 🇦🇶 732 56 9ms 5 Mar 2022 350th GeorgeStechman 🇬🇧 732 56 9ms 23 May 2022 350th Protothor 732 56 8ms 14 Jun 2025 359th jackkav 719 57 9ms 26 Dec 2018 359th paavohuhtala 719 57 8ms 4 Jan 2020 359th lowlighter 719 57 9ms 1 Nov 2020 359th taimanh229 719 57 8ms 31 Dec 2020 359th DaCuteRaccoon 719 57 9ms 21 Apr 2022 359th Smetalo 719 57 8ms 25 Aug 2022 359th StronkCheese 🇺🇸 719 57 9ms 27 Jan 2023 359th AZ9tumas 719 57 8ms 11 Feb 2023 359th 1231234md5 🇨🇳 719 57 9ms 11 Dec 2023 359th andrewl64 719 57 9ms 18 Jan 2024 359th nakatchi 719 57 9ms 26 Feb 2024 359th Europe2048 719 57 9ms 27 Sep 2024 359th TheAtrossian 719 57 9ms 5 Jan 2025 359th 52525rr 719 57 9ms 20 Sep 2025 359th madeforlosers 719 57 9ms 20 Oct 2025 374th dcure73 707 58 9ms 7 Jun 2019 374th GitaMonster 707 58 9ms 31 Aug 2020 First Prev 301–375 of 477 Next Last