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12 Days of Christmas 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 157th johnkiernander 847 485 9ms 15 days ago 157th Nemikolh 🇫🇷 847 485 9ms 2 days ago 163rd fitzdotlol 🇺🇸 846 486 9ms 20 Mar 2022 163rd Larento 846 486 9ms 14 Oct 2023 165th NatNgs 844 487 8ms 8 Jan 2020 165th KaeruCT 844 487 9ms 2 Dec 2020 165th mcculloughjchris 844 487 8ms 31 Oct 2022 165th madex 🇩🇪 844 487 9ms 19 Dec 2024 169th dzshn 842 488 9ms 14 Apr 2021 169th vlad-ushakov 842 488 9ms 22 Mar 2023 171st josh18994 839 490 9ms 8 Dec 2021 171st non-bin 839 490 8ms 27 Jun 2025 173rd 21Joakim 837 491 9ms 30 Mar 2021 173rd maxpelic 🇺🇸 837 491 8ms 8 Jul 2022 173rd acollett89 837 491 8ms 18 Jun 2025 176th gnlow 🇰🇷 835 492 9ms 17 Apr 2020 177th KY246 830 495 9ms 12 Jun 2021 177th liamstrilchuk 830 495 9ms 10 Sep 2021 177th vjohannesb 830 495 9ms 23 Dec 2023 180th oitio 829 496 9ms 10 Feb 2020 180th alcoholick-dev 829 496 8ms 26 Apr 2021 180th CutOffFrequency 829 496 9ms 31 Oct 2022 180th Lv0Sys 🇵🇱 829 496 9ms 29 May 2025 184th Michiocre 827 497 9ms 20 Feb 2024 184th tcql 🇺🇸 827 497 9ms 21 Apr 2024 186th modellking 825 498 8ms 3 Jun 2020 187th leon-w 824 499 8ms 12 Oct 2018 187th vang1ong7ang 824 499 8ms 28 Oct 2021 187th unfinishedprogram 824 499 8ms 12 Dec 2023 190th adam-chalmers 822 500 9ms 5 Oct 2024 191st igmcdowell 820 501 8ms 3 Jan 2022 192nd apokryfos 819 502 9ms 4 Aug 2023 193rd bac0id 817 503 8ms 26 Jun 2024 194th skps2010 815 504 9ms 2 Jan 2019 194th EricUmakoshi 815 504 9ms 31 Aug 2024 194th deancureton 815 504 9ms 30 Dec 2024 197th MJKWoolnough 814 505 9ms 10 Aug 2022 197th JRaspass 🇬🇧 814 505 8ms 11 Oct 2022 197th eranws 814 505 9ms 23 Oct 2022 197th Yewzir 🇧🇪 814 505 8ms 17 Apr 2023 197th marcus-gomes-v 🇧🇷 814 505 8ms 23 Feb 2025 202nd OmegaB0t 812 506 9ms 5 Dec 2019 202nd dijs 812 506 9ms 8 Dec 2019 202nd BloodStormKnight 812 506 8ms 16 Oct 2022 202nd dev-Thae 812 506 9ms 6 Nov 2023 202nd kydogia 812 506 9ms 28 Mar 2024 207th TRexOnGit 811 507 9ms 15 Jan 2024 208th chris-munn 809 508 9ms 30 Nov 2023 208th 4very 809 508 9ms 9 Jun 2025 210th matthewproskils 807 509 8ms 8 Sep 2020 210th ShiraJoseph 🇺🇸 807 509 9ms 21 Jul 2023 212th boxjelly 806 510 8ms 13 Feb 2021 212th aaronze 🇦🇺 806 510 8ms 24 Apr 2021 212th DialFrost 🇸🇬 806 510 9ms 24 Jan 2023 215th konpikwastaken 804 511 9ms 6 Sep 2021 215th ricardonunesdev 804 511 8ms 24 Nov 2023 215th TheDongle 804 511 9ms 30 Apr 2024 218th Nuottajarvi 803 512 9ms 10 Aug 2018 218th bitnimble 803 512 9ms 21 Oct 2021 218th iczelia 🇩🇪 803 512 9ms 14 Oct 2025 221st ian-odonnell 801 513 9ms 12 Mar 2018 221st i-machine 801 513 8ms 28 Aug 2020 221st wansacis 🇩🇪 801 513 9ms 11 Nov 2021 224th avartanii 798 515 9ms 17 Jan 2021 224th E2dgar 798 515 9ms 29 Jan 2022 224th gajdosp2 798 515 9ms 27 Jun 2022 227th TheRandomTroll 797 516 8ms 20 Oct 2020 227th taredding 797 516 9ms 6 Oct 2021 229th adoxography 795 517 9ms 30 Mar 2018 229th exortech 795 517 9ms 22 May 2021 229th tuxillator 795 517 8ms 13 May 2024 232nd shaunjc 793 518 8ms 11 Jun 2021 232nd adamnielson42 🇺🇸 793 518 8ms 30 May 2023 232nd VegaQ8 793 518 9ms 8 Mar 2024 235th MFogleman 792 519 9ms 8 Jul 2020 235th RegularSalamander 792 519 9ms 29 Jan 2022 235th n3uromanc3r 792 519 9ms 3 Dec 2024 238th t1mp4 790 520 9ms 18 Aug 2023 238th gazhay 790 520 9ms 2 Jan 2025 240th TheDarkThatBarks 787 522 9ms 28 Jan 2024 First Prev 161–240 of 404 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