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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 156th Nemikolh 🇫🇷 847 485 9ms 67 mins ago 162nd fitzdotlol 🇺🇸 846 486 9ms 20 Mar 2022 162nd Larento 846 486 9ms 14 Oct 2023 164th NatNgs 844 487 8ms 8 Jan 2020 164th KaeruCT 844 487 9ms 2 Dec 2020 164th mcculloughjchris 844 487 8ms 31 Oct 2022 164th madex 🇩🇪 844 487 9ms 19 Dec 2024 168th dzshn 842 488 9ms 14 Apr 2021 168th vlad-ushakov 842 488 9ms 22 Mar 2023 170th josh18994 839 490 9ms 8 Dec 2021 170th non-bin 839 490 8ms 27 Jun 2025 172nd 21Joakim 837 491 9ms 30 Mar 2021 172nd maxpelic 🇺🇸 837 491 8ms 8 Jul 2022 172nd acollett89 837 491 8ms 18 Jun 2025 175th gnlow 🇰🇷 835 492 9ms 17 Apr 2020 176th KY246 830 495 9ms 12 Jun 2021 176th liamstrilchuk 830 495 9ms 10 Sep 2021 176th vjohannesb 830 495 9ms 23 Dec 2023 179th oitio 829 496 9ms 10 Feb 2020 179th alcoholick-dev 829 496 8ms 26 Apr 2021 179th CutOffFrequency 829 496 9ms 31 Oct 2022 179th Lv0Sys 🇵🇱 829 496 9ms 29 May 2025 183rd Michiocre 827 497 9ms 20 Feb 2024 183rd tcql 🇺🇸 827 497 9ms 21 Apr 2024 185th modellking 825 498 8ms 3 Jun 2020 186th leon-w 824 499 8ms 12 Oct 2018 186th vang1ong7ang 824 499 8ms 28 Oct 2021 186th unfinishedprogram 824 499 8ms 12 Dec 2023 189th adam-chalmers 822 500 9ms 5 Oct 2024 190th igmcdowell 820 501 8ms 3 Jan 2022 191st apokryfos 819 502 9ms 4 Aug 2023 192nd bac0id 817 503 8ms 26 Jun 2024 193rd skps2010 815 504 9ms 2 Jan 2019 193rd EricUmakoshi 815 504 9ms 31 Aug 2024 193rd deancureton 815 504 9ms 30 Dec 2024 196th MJKWoolnough 814 505 9ms 10 Aug 2022 196th JRaspass 🇬🇧 814 505 8ms 11 Oct 2022 196th eranws 814 505 9ms 23 Oct 2022 196th Yewzir 🇧🇪 814 505 8ms 17 Apr 2023 196th marcus-gomes-v 🇧🇷 814 505 8ms 23 Feb 2025 201st OmegaB0t 812 506 9ms 5 Dec 2019 201st dijs 812 506 9ms 8 Dec 2019 201st BloodStormKnight 812 506 8ms 16 Oct 2022 201st dev-Thae 812 506 9ms 6 Nov 2023 201st kydogia 812 506 9ms 28 Mar 2024 206th TRexOnGit 811 507 9ms 15 Jan 2024 207th chris-munn 809 508 9ms 30 Nov 2023 207th 4very 809 508 9ms 9 Jun 2025 209th matthewproskils 807 509 8ms 8 Sep 2020 209th ShiraJoseph 🇺🇸 807 509 9ms 21 Jul 2023 211th boxjelly 806 510 8ms 13 Feb 2021 211th aaronze 🇦🇺 806 510 8ms 24 Apr 2021 211th DialFrost 🇸🇬 806 510 9ms 24 Jan 2023 214th konpikwastaken 804 511 9ms 6 Sep 2021 214th ricardonunesdev 804 511 8ms 24 Nov 2023 214th TheDongle 804 511 9ms 30 Apr 2024 217th Nuottajarvi 803 512 9ms 10 Aug 2018 217th bitnimble 803 512 9ms 21 Oct 2021 217th iczelia 🇩🇪 803 512 9ms 14 Oct 2025 220th ian-odonnell 801 513 9ms 12 Mar 2018 220th i-machine 801 513 8ms 28 Aug 2020 220th wansacis 🇩🇪 801 513 9ms 11 Nov 2021 223rd avartanii 798 515 9ms 17 Jan 2021 223rd E2dgar 798 515 9ms 29 Jan 2022 223rd gajdosp2 798 515 9ms 27 Jun 2022 226th TheRandomTroll 797 516 9ms 20 Oct 2020 226th taredding 797 516 9ms 6 Oct 2021 228th adoxography 795 517 9ms 30 Mar 2018 228th exortech 795 517 9ms 22 May 2021 228th tuxillator 795 517 8ms 13 May 2024 231st shaunjc 793 518 8ms 11 Jun 2021 231st adamnielson42 🇺🇸 793 518 8ms 30 May 2023 231st VegaQ8 793 518 9ms 8 Mar 2024 234th MFogleman 792 519 9ms 8 Jul 2020 234th RegularSalamander 792 519 9ms 29 Jan 2022 234th n3uromanc3r 792 519 9ms 3 Dec 2024 237th t1mp4 790 520 9ms 18 Aug 2023 237th gazhay 790 520 9ms 2 Jan 2025 239th TheDarkThatBarks 787 522 9ms 28 Jan 2024 239th MyXoToD 🇩🇪 787 522 8ms 5 May 2025 First Prev 161–240 of 403 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