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 Calendar 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 Multitap Input 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 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 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar 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 Multitap Input 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 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 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 160th chloeching-amino 847 485 9ms 24 May 2020 160th revlayle 🇺🇸 847 485 10ms 16 Feb 2021 160th CubeyTheCube 847 485 9ms 9 Aug 2022 160th johnkiernander 847 485 9ms 10 Dec 2025 160th Nemikolh 🇫🇷 847 485 10ms 23 Dec 2025 166th fitzdotlol 🇺🇸 846 486 9ms 20 Mar 2022 166th Larento 846 486 9ms 14 Oct 2023 168th NatNgs 844 487 11ms 8 Jan 2020 168th KaeruCT 844 487 9ms 2 Dec 2020 168th mcculloughjchris 844 487 9ms 31 Oct 2022 168th madex 🇩🇪 844 487 10ms 19 Dec 2024 172nd dzshn 842 488 10ms 14 Apr 2021 172nd vlad-ushakov 842 488 9ms 22 Mar 2023 174th josh18994 839 490 9ms 8 Dec 2021 174th non-bin 839 490 9ms 27 Jun 2025 176th 21Joakim 837 491 11ms 30 Mar 2021 176th maxpelic 🇺🇸 837 491 8ms 8 Jul 2022 176th acollett89 837 491 9ms 18 Jun 2025 179th gnlow 🇰🇷 835 492 9ms 17 Apr 2020 180th KY246 830 495 9ms 12 Jun 2021 180th liamstrilchuk 830 495 8ms 10 Sep 2021 180th vjohannesb 830 495 9ms 23 Dec 2023 183rd oitio 829 496 10ms 10 Feb 2020 183rd alcoholick-dev 829 496 9ms 26 Apr 2021 183rd CutOffFrequency 829 496 9ms 31 Oct 2022 183rd Lv0Sys 🇵🇱 829 496 10ms 29 May 2025 187th Michiocre 827 497 12ms 20 Feb 2024 187th tcql 🇺🇸 827 497 8ms 21 Apr 2024 189th modellking 825 498 9ms 3 Jun 2020 190th leon-w 824 499 9ms 12 Oct 2018 190th vang1ong7ang 824 499 9ms 28 Oct 2021 190th unfinishedprogram 824 499 10ms 12 Dec 2023 193rd adam-chalmers 822 500 9ms 5 Oct 2024 194th igmcdowell 820 501 9ms 3 Jan 2022 195th apokryfos 819 502 9ms 4 Aug 2023 196th bac0id 817 503 12ms 26 Jun 2024 197th skps2010 815 504 9ms 2 Jan 2019 197th EricUmakoshi 815 504 11ms 31 Aug 2024 197th deancureton 815 504 11ms 30 Dec 2024 200th MJKWoolnough 814 505 10ms 10 Aug 2022 200th JRaspass 🇬🇧 814 505 10ms 11 Oct 2022 200th eranws 814 505 9ms 23 Oct 2022 200th Yewzir 🇧🇪 814 505 9ms 17 Apr 2023 200th marcus-gomes-v 🇧🇷 814 505 10ms 23 Feb 2025 205th OmegaB0t 812 506 9ms 5 Dec 2019 205th dijs 812 506 9ms 8 Dec 2019 205th BloodStormKnight 812 506 10ms 16 Oct 2022 205th dev-Thae 812 506 10ms 6 Nov 2023 205th kydogia 812 506 9ms 28 Mar 2024 210th TRexOnGit 811 507 10ms 15 Jan 2024 211th chris-munn 809 508 8ms 30 Nov 2023 211th 4very 809 508 10ms 9 Jun 2025 213th matthewproskils 807 509 9ms 8 Sep 2020 213th ShiraJoseph 🇺🇸 807 509 9ms 21 Jul 2023 215th boxjelly 806 510 9ms 13 Feb 2021 215th aaronze 🇦🇺 806 510 10ms 24 Apr 2021 217th konpikwastaken 804 511 9ms 6 Sep 2021 217th ricardonunesdev 804 511 10ms 24 Nov 2023 217th TheDongle 804 511 9ms 30 Apr 2024 220th Nuottajarvi 803 512 10ms 10 Aug 2018 220th bitnimble 803 512 9ms 21 Oct 2021 220th iczelia 🇩🇪 803 512 9ms 14 Oct 2025 223rd ian-odonnell 801 513 10ms 12 Mar 2018 223rd i-machine 801 513 8ms 28 Aug 2020 223rd wansacis 🇩🇪 801 513 9ms 11 Nov 2021 226th avartanii 798 515 11ms 17 Jan 2021 226th E2dgar 798 515 9ms 29 Jan 2022 226th gajdosp2 798 515 9ms 27 Jun 2022 229th TheRandomTroll 797 516 11ms 20 Oct 2020 229th taredding 797 516 9ms 6 Oct 2021 231st adoxography 795 517 9ms 30 Mar 2018 231st exortech 795 517 9ms 22 May 2021 231st tuxillator 795 517 11ms 13 May 2024 234th shaunjc 793 518 10ms 11 Jun 2021 234th adamnielson42 🇺🇸 793 518 9ms 30 May 2023 234th VegaQ8 793 518 9ms 8 Mar 2024 237th MFogleman 792 519 10ms 8 Jul 2020 237th RegularSalamander 792 519 11ms 29 Jan 2022 237th n3uromanc3r 792 519 9ms 3 Dec 2024 240th t1mp4 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