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 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 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 ArkScript 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 ArkScript 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 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 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 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 241st TheDarkThatBarks 787 522 11ms 28 Jan 2024 241st MyXoToD 🇩🇪 787 522 11ms 5 May 2025 241st Florian-Mt 787 522 11ms 4 Dec 2025 244th JackWorman 786 523 9ms 11 Aug 2019 245th fortuno01 784 524 8ms 15 Apr 2020 245th farberbrodsky 784 524 9ms 3 Aug 2020 247th Ivraj 783 525 10ms 9 Aug 2021 247th jorbDehmel 🇺🇸 783 525 11ms 15 Apr 2023 249th joakim-ronning 781 526 10ms 23 May 2023 249th Ephellon 781 526 10ms 16 Dec 2023 251st d-capponi 🇦🇷 780 527 11ms 29 Apr 2021 251st winstonyli 780 527 10ms 10 Oct 2021 251st auribuo 780 527 10ms 28 Sep 2025 254th kapott 🇳🇱 778 528 9ms 11 Jan 2021 254th WilleyOhana 778 528 9ms 14 Jan 2022 256th Alucard0x1 775 530 10ms 15 Jul 2025 257th meenie 774 531 11ms 1 Jan 2021 257th MathisBullinger 774 531 10ms 31 Dec 2022 257th cyrilboyer 🇫🇷 774 531 9ms 21 Dec 2023 257th nick4333 774 531 11ms 10 Apr 2024 261st jakethakur 773 532 10ms 30 Mar 2018 261st JeanmarieJackman 773 532 10ms 17 Oct 2023 263rd julianbenegas 771 533 10ms 10 May 2020 263rd Pandapip1 771 533 10ms 20 Nov 2020 263rd Weston49 771 533 9ms 11 Dec 2022 266th msbranicky 770 534 10ms 8 Sep 2023 267th kwoisphiosm 767 536 9ms 12 May 2021 268th TheMickeyMouse 765 537 10ms 31 Jul 2021 269th JustinDowty 764 538 11ms 12 Jun 2020 269th MichaelDarr 764 538 10ms 17 Apr 2024 271st kraftwerk28 763 539 10ms 28 Aug 2020 271st berenteb 🇭🇺 763 539 11ms 11 Dec 2020 271st olavs69 763 539 10ms 8 Dec 2025 274th adicuco 760 541 10ms 17 Jan 2020 275th KevinLaux 757 543 9ms 4 Dec 2022 275th Alexander-Garcia 757 543 8ms 5 Dec 2023 277th tonyOreglia 756 544 9ms 5 Oct 2021 278th ltdroy 754 545 11ms 9 Dec 2023 279th shb9019 753 546 10ms 10 Mar 2020 279th dbkirk4211 753 546 11ms 3 May 2024 281st Jimmy-b36 746 551 10ms 2 Nov 2022 282nd Crysp 745 552 9ms 12 Feb 2020 282nd ubunbun18 745 552 10ms 3 Dec 2025 284th benjamin-wunder 743 553 9ms 13 Nov 2022 285th macknive 742 554 10ms 10 Mar 2022 286th heigertd 739 556 9ms 27 May 2020 287th McErer 738 557 10ms 11 Jan 2019 287th Kibble 738 557 9ms 5 Oct 2020 289th Pablo-No 734 560 9ms 14 Jul 2020 290th con-cs 733 561 9ms 22 Oct 2021 291st Intevel 🇩🇪 726 566 9ms 27 Jun 2023 292nd B3none 725 567 9ms 6 Oct 2022 293rd ozkxr 724 568 9ms 27 Apr 2020 294th Bishwajit2u 722 569 10ms 16 Sep 2021 295th kenny14231 721 570 8ms 5 Aug 2022 296th mishojan 720 571 10ms 5 Nov 2020 297th omgmog 717 573 9ms 8 Aug 2022 297th demonischuk 717 573 11ms 10 Sep 2023 297th BenScattergood 717 573 10ms 13 Sep 2023 300th mlwade 715 575 10ms 26 Apr 2022 300th Lxkasmehl 715 575 9ms 11 Jul 2025 302nd ChesterJFGould 714 576 9ms 5 Jun 2019 303rd SirHig 712 577 10ms 2 Jan 2019 303rd jesseb34r 712 577 9ms 1 Dec 2022 305th pbarath 711 578 9ms 6 Jun 2021 305th strubix 711 578 10ms 7 Jun 2023 307th mukulkesh 710 579 11ms 17 Sep 2021 308th DanSmelly 709 580 10ms 30 Apr 2020 309th baidan4855 704 584 9ms 16 Dec 2017 310th NoahGysin 703 585 10ms 24 Aug 2021 311th MicheleV 699 588 11ms 20 May 2018 312th jcwebhole 697 590 9ms 28 Jun 2018 312th blubbers122 697 590 9ms 19 Nov 2021 312th A11yship 697 590 10ms 31 Oct 2023 315th bortlicenseplates 695 591 9ms 24 Nov 2020 316th iburnez 693 593 9ms 9 Aug 2023 317th Proinsias62 688 597 10ms 15 Nov 2020 318th rossmacfarlane 687 598 9ms 9 Nov 2022 318th hacker19374 687 598 9ms 10 Mar 2023 320th mille3dl 684 601 10ms 9 Jun 2020 First 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