Collatz in JavaScript in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript 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 Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 F# Factor Forth Fortran Gleam Go GolfScript 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 Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 145th Davr1 🇨🇿 859 64 14 Oct 2023 145th stellartux 859 64 26 Dec 2023 145th goodwyna21 859 64 12 Nov 2024 145th xShadowBlade 859 64 26 Dec 2024 155th wansacis 🇩🇪 846 65 13 May 2022 155th krcs 🇵🇱 846 65 24 Nov 2022 155th ejini6969 846 65 1 Apr 2023 155th InspectorBoat 846 65 25 Oct 2023 155th jake6192 846 65 20 May 2025 155th richard-oelze 🇩🇪 846 65 23 hours ago 161st ChiefChippy2 833 66 4 May 2022 161st Radwatch 833 66 22 Jun 2022 161st TheCod-r 🇦🇶 833 66 10 Oct 2022 161st MadScience137 833 66 17 Oct 2022 161st nayakrujul 833 66 12 Mar 2023 161st HenryTy83 833 66 3 May 2023 161st charliegaming 833 66 3 Oct 2023 161st mobibluman 833 66 16 Oct 2023 161st azka1368 833 66 23 Nov 2023 161st thej10n 833 66 13 Jun 2024 161st Florian-Mt 833 66 22 Jul 2024 161st deancureton 833 66 29 Dec 2024 161st Quadruplay 833 66 13 days ago 174th inverseLorentz 🇦🇺 821 67 25 Jun 2022 174th maxpelic 🇺🇸 821 67 5 Jul 2022 174th vroup 🇩🇰 821 67 29 Sep 2022 174th Bodo171 821 67 1 Dec 2022 174th Inbarw100 821 67 10 Jun 2023 174th raszpi 🇭🇺 821 67 1 Sep 2023 174th dijs 821 67 8 Mar 2024 174th yb1yb1 821 67 6 Oct 2024 174th smclaughlin-cf 821 67 25 Feb 2025 183rd Smetalo 809 68 25 Aug 2022 183rd TheRealOhead 🇺🇸 809 68 23 Nov 2022 183rd b10011 🇫🇮 809 68 27 Dec 2022 183rd RasmusBV 809 68 19 Feb 2023 183rd joakim-ronning 809 68 24 May 2023 183rd TRexOnGit 809 68 31 Jan 2024 189th adoxography 797 69 13 Jul 2022 189th eshilo-draper 797 69 5 Oct 2022 189th 2pichar 797 69 11 Nov 2022 189th jorbDehmel 🇺🇸 797 69 17 Jun 2023 193rd Jaro32768 🇸🇰 786 70 8 Feb 2024 193rd Alex-Huggett 🇬🇧 786 70 15 Apr 2024 193rd Moreallure 786 70 5 May 2024 193rd AnnoyedArt1256 786 70 22 days ago 197th destofr 775 71 25 Aug 2022 197th pyuraii 775 71 27 Sep 2022 197th kydogia 775 71 18 Oct 2022 197th jquade7 775 71 27 May 2023 197th SniperSmiley 🇺🇸 775 71 7 Apr 2024 197th dbkirk4211 775 71 3 May 2024 203rd coolCucumber-cat 764 72 20 Mar 2023 203rd mrmena 🇦🇺 764 72 19 Mar 2024 203rd sulphemi 764 72 3 Apr 2025 206th gurglemurgle5 753 73 12 May 2022 206th adamnielson42 🇺🇸 753 73 24 Apr 2023 206th fourth-bit 753 73 23 Jun 2023 206th efgen 753 73 28 Jun 2023 206th AlbatrossBay 753 73 8 Oct 2024 206th ComputerKWasTaken 🇺🇸 753 73 20 Jan 2025 212th JesseNoEyes 🇺🇸 743 74 18 Sep 2024 213th draxler-h 724 76 14 Jan 2023 213th DragonaireM 724 76 6 Feb 2023 213th dteague3989 724 76 12 Aug 2023 216th astdefu 714 77 10 Dec 2022 216th Maximizer02 714 77 2 Oct 2023 216th eiburns 714 77 23 Oct 2023 216th TotoAJ 714 77 15 Dec 2023 220th LordSir101 705 78 19 Jul 2022 221st truisseaux 696 79 4 Sep 2024 221st Voltrifrodec 🇸🇰 696 79 19 Apr 2025 223rd lucipas 688 80 8 May 2024 223rd GeneralFabian 688 80 4 Dec 2024 225th gussy420 679 81 30 Oct 2023 Prev 151–225 of 250 Next