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 372nd arrudagates 707 58 10ms 24 Jun 2021 372nd p-vf 🇨🇭 707 58 9ms 13 Oct 2021 372nd Great-Gamer 707 58 9ms 25 Feb 2022 372nd mckymsh 707 58 9ms 27 Feb 2022 372nd Ploverums 707 58 8ms 28 Sep 2022 372nd genius257 707 58 9ms 3 Oct 2022 372nd jorbDehmel 🇺🇸 707 58 8ms 27 Feb 2023 372nd InspectorBoat 707 58 10ms 25 Oct 2023 384th WIPocket 695 59 9ms 30 Dec 2018 384th blucky36 695 59 11ms 27 Feb 2019 384th wrauner 695 59 9ms 16 Aug 2019 384th Matojeje 695 59 10ms 12 Dec 2019 384th 8davidb8 695 59 9ms 10 Jun 2020 384th KaeruCT 695 59 9ms 7 Oct 2020 384th Secozzi 695 59 9ms 20 Oct 2020 384th ffflorian 695 59 9ms 23 Nov 2020 384th JosephAbbey 695 59 9ms 6 Apr 2022 384th bwenstar 695 59 9ms 11 Aug 2022 384th WoodStuff 🇵🇱 695 59 9ms 3 Jun 2023 384th kwilson151 695 59 9ms 7 Jul 2023 384th Yareeeema 695 59 11ms 11 Oct 2023 384th iCyuba 695 59 9ms 15 Oct 2023 384th Palladium02 695 59 8ms 26 May 2025 399th ciaranmag 683 60 9ms 25 Jan 2019 399th TTWNO 683 60 10ms 8 Apr 2019 399th islonely 683 60 9ms 26 Apr 2019 399th florton 683 60 9ms 19 Mar 2021 399th peculiarination 683 60 10ms 30 Apr 2021 399th baby-steve 683 60 9ms 5 May 2021 399th BillyBobFry 683 60 9ms 22 Oct 2021 399th gurglemurgle5 683 60 9ms 15 Feb 2022 399th mayrop 683 60 9ms 4 Nov 2022 399th janleigh 🇵🇭 683 60 9ms 23 Sep 2023 399th xShadowBlade 683 60 8ms 19 May 2024 410th Pandapip1 672 61 10ms 11 Feb 2021 410th evalPenny 🇰🇷 672 61 8ms 6 Jul 2021 410th scottjones4k 672 61 10ms 5 Jul 2022 413th ptforness 661 62 9ms 1 Jan 2023 414th vidmantasa 651 63 10ms 23 Sep 2021 414th jamespeilunli 651 63 9ms 20 Mar 2022 414th adamnielson42 🇺🇸 651 63 9ms 24 Apr 2023 414th notesz5 651 63 8ms 5 Sep 2023 414th Voltrifrodec 🇸🇰 651 63 8ms 23 Apr 2025 414th MyXoToD 🇩🇪 651 63 8ms 20 May 2025 420th TrAyZeN 641 64 9ms 19 Aug 2019 420th yencis 641 64 9ms 18 Feb 2020 420th ahorihan 641 64 10ms 3 Aug 2022 420th Dddatt 641 64 8ms 22 Jan 2025 424th shreyasminocha 631 65 9ms 2 Aug 2020 424th lucipas 631 65 9ms 10 May 2024 426th effin 621 66 10ms 10 May 2019 426th MaartenStaa 621 66 9ms 5 Jan 2020 426th Designer023 621 66 9ms 8 Feb 2020 426th JustinDowty 621 66 9ms 12 Jun 2020 426th SebassNoob 621 66 9ms 5 Aug 2025 431st jonot-cyber 612 67 8ms 16 Jun 2019 431st WilleyOhana 612 67 10ms 26 Feb 2021 431st davyboyhayes 612 67 9ms 24 Jan 2023 434th tadeokondrak 603 68 9ms 22 Feb 2019 434th OmegaB0t 603 68 9ms 5 Dec 2019 436th marekMin 594 69 10ms 11 Jun 2019 436th jayanwar 594 69 10ms 5 Nov 2019 438th null-tangent 586 70 10ms 3 Aug 2022 438th ShepardToTheStars 586 70 9ms 5 Jan 2024 440th squadb3 562 73 9ms 11 Oct 2019 440th ABoxAlt 562 73 8ms 16 Nov 2023 442nd tickct 554 74 10ms 12 Sep 2019 442nd Scoutboy06 554 74 9ms 9 Dec 2019 442nd James-revans 554 74 9ms 30 Dec 2019 442nd AlexOgn 554 74 9ms 26 Dec 2020 442nd E2dgar 554 74 9ms 31 Jan 2022 442nd aneurin-h 554 74 9ms 15 Nov 2022 442nd dpb4 554 74 9ms 27 Feb 2024 442nd tik25 554 74 9ms 28 Mar 2024 450th Bejofo 547 75 8ms 17 Mar 2021 First Prev 376–450 of 474 Next Last