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 240th gazhay 790 520 9ms 2 Jan 2025 242nd TheDarkThatBarks 787 522 11ms 28 Jan 2024 242nd MyXoToD 🇩🇪 787 522 9ms 5 May 2025 242nd Florian-Mt 787 522 10ms 4 Dec 2025 245th JackWorman 786 523 10ms 11 Aug 2019 246th fortuno01 784 524 11ms 15 Apr 2020 246th farberbrodsky 784 524 9ms 3 Aug 2020 248th Ivraj 783 525 11ms 9 Aug 2021 248th jorbDehmel 🇺🇸 783 525 10ms 15 Apr 2023 250th joakim-ronning 781 526 10ms 23 May 2023 250th Ephellon 781 526 10ms 16 Dec 2023 252nd d-capponi 🇦🇷 780 527 10ms 29 Apr 2021 252nd winstonyli 780 527 9ms 10 Oct 2021 252nd auribuo 780 527 9ms 28 Sep 2025 255th kapott 🇳🇱 778 528 9ms 11 Jan 2021 255th WilleyOhana 778 528 9ms 14 Jan 2022 257th Alucard0x1 775 530 8ms 15 Jul 2025 258th meenie 774 531 8ms 1 Jan 2021 258th MathisBullinger 774 531 9ms 31 Dec 2022 258th cyrilboyer 🇫🇷 774 531 9ms 21 Dec 2023 258th nick4333 774 531 11ms 10 Apr 2024 262nd jakethakur 773 532 10ms 30 Mar 2018 262nd JeanmarieJackman 773 532 10ms 17 Oct 2023 264th julianbenegas 771 533 9ms 10 May 2020 264th Pandapip1 771 533 10ms 20 Nov 2020 264th Weston49 771 533 10ms 11 Dec 2022 267th msbranicky 770 534 11ms 8 Sep 2023 268th kwoisphiosm 767 536 9ms 12 May 2021 269th TheMickeyMouse 765 537 10ms 31 Jul 2021 270th JustinDowty 764 538 9ms 12 Jun 2020 270th MichaelDarr 764 538 10ms 17 Apr 2024 272nd kraftwerk28 763 539 9ms 28 Aug 2020 272nd berenteb 🇭🇺 763 539 9ms 11 Dec 2020 272nd olavs69 763 539 9ms 8 Dec 2025 275th adicuco 760 541 9ms 17 Jan 2020 276th KevinLaux 757 543 10ms 4 Dec 2022 276th Alexander-Garcia 757 543 10ms 5 Dec 2023 278th tonyOreglia 756 544 10ms 5 Oct 2021 279th ltdroy 754 545 8ms 9 Dec 2023 280th shb9019 753 546 11ms 10 Mar 2020 280th dbkirk4211 753 546 9ms 3 May 2024 282nd Jimmy-b36 746 551 10ms 2 Nov 2022 283rd Crysp 745 552 10ms 12 Feb 2020 283rd ubunbun18 745 552 9ms 3 Dec 2025 285th benjamin-wunder 743 553 9ms 13 Nov 2022 286th macknive 742 554 9ms 10 Mar 2022 287th heigertd 739 556 9ms 27 May 2020 288th McErer 738 557 9ms 11 Jan 2019 288th Kibble 738 557 9ms 5 Oct 2020 290th Pablo-No 734 560 10ms 14 Jul 2020 291st con-cs 733 561 10ms 22 Oct 2021 292nd Intevel 🇩🇪 726 566 10ms 27 Jun 2023 293rd B3none 725 567 9ms 6 Oct 2022 294th ozkxr 724 568 9ms 27 Apr 2020 295th Bishwajit2u 722 569 9ms 16 Sep 2021 296th kenny14231 721 570 9ms 5 Aug 2022 297th mishojan 720 571 10ms 5 Nov 2020 298th omgmog 717 573 10ms 8 Aug 2022 298th demonischuk 717 573 10ms 10 Sep 2023 298th BenScattergood 717 573 9ms 13 Sep 2023 301st mlwade 715 575 9ms 26 Apr 2022 301st Lxkasmehl 715 575 9ms 11 Jul 2025 303rd ChesterJFGould 714 576 9ms 5 Jun 2019 304th SirHig 712 577 10ms 2 Jan 2019 304th jesseb34r 712 577 9ms 1 Dec 2022 306th pbarath 711 578 9ms 6 Jun 2021 306th strubix 711 578 10ms 7 Jun 2023 308th mukulkesh 710 579 9ms 17 Sep 2021 309th DanSmelly 709 580 10ms 30 Apr 2020 310th baidan4855 704 584 9ms 16 Dec 2017 311th NoahGysin 703 585 10ms 24 Aug 2021 312th MicheleV 699 588 9ms 20 May 2018 313th jcwebhole 697 590 9ms 28 Jun 2018 313th blubbers122 697 590 9ms 19 Nov 2021 313th A11yship 697 590 9ms 31 Oct 2023 316th bortlicenseplates 695 591 9ms 24 Nov 2020 317th iburnez 693 593 9ms 9 Aug 2023 318th Proinsias62 688 597 9ms 15 Nov 2020 319th rossmacfarlane 687 598 10ms 9 Nov 2022 319th hacker19374 687 598 9ms 10 Mar 2023 First Prev 241–320 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