Happy Numbers 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 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 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 CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 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 Erlang 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 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 Erlang 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 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 CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 151st Jooraz 585 106 14ms 13 May 2019 151st rodigu 585 106 10ms 14 Jun 2021 153rd xyangst 579 107 10ms 7 Oct 2024 154th RonnyPumaricra 574 108 10ms 25 Nov 2020 154th tscherter 574 108 9ms 4 Dec 2020 156th sethimcclaine 569 109 10ms 5 Apr 2019 156th ereztaiar 🇮🇱 569 109 9ms 7 Sep 2021 156th olleicua 🇺🇸 569 109 10ms 13 Feb 2024 159th berdzi 564 110 9ms 8 Mar 2022 159th adamnielson42 🇺🇸 564 110 9ms 30 May 2023 161st ian-odonnell 559 111 9ms 14 Mar 2018 161st dsntzn 🇸🇰 559 111 10ms 21 Aug 2020 161st wansacis 🇩🇪 559 111 10ms 26 Jul 2021 161st SpareManiKatti 559 111 9ms 9 Sep 2021 165th Ashikpaul 🇮🇳 554 112 12ms 9 May 2021 166th JRaspass 🇬🇧 549 113 9ms 7 Jul 2020 166th Kibble 549 113 9ms 12 Jul 2020 166th gnlow 🇰🇷 549 113 8ms 6 Mar 2021 166th kozgera 549 113 9ms 19 May 2021 166th theunofficialcoder 549 113 9ms 18 Aug 2021 166th AnnoyedArt1256 549 113 10ms 8 Jan 2022 166th GeorgeStechman 🇬🇧 549 113 8ms 7 Jun 2022 166th TechNolaByte 549 113 9ms 26 Dec 2022 166th ZoeMcG 549 113 13ms 8 Jan 2023 166th hacker19374 549 113 9ms 10 Mar 2023 166th HumanoidCPU 549 113 8ms 3 May 2024 166th gigaprofisi 🇺🇸 549 113 8ms 20 Jun 2025 178th jiaminglimjm 🇲🇾 544 114 10ms 4 Jul 2020 179th KatieLG-Transpiler 🇬🇧 539 115 9ms 23 Jun 2022 179th apokryfos 539 115 8ms 21 Aug 2023 179th hacker112 🇸🇪 539 115 8ms 20 Jun 2024 182nd dijs 534 116 9ms 5 Dec 2019 183rd Cr3aHal0 530 117 9ms 27 Jun 2019 184th wrauner 525 118 10ms 15 Aug 2019 185th lowlighter 521 119 13ms 30 Oct 2020 185th TheRealOhead 🇺🇸 521 119 11ms 25 Jan 2023 187th Nefsen402 517 120 14ms 23 Jan 2019 187th MrMullac 517 120 9ms 2 May 2025 189th pbarath 504 123 10ms 19 May 2021 190th emilianoyaryura 500 124 9ms 30 Jan 2021 191st lewdev 🇺🇸 496 125 9ms 26 Jul 2021 191st bac0id 496 125 9ms 30 Jun 2024 193rd efgen 492 126 13ms 14 Jun 2020 194th vititu 481 129 9ms 29 Apr 2020 194th maxpelic 🇺🇸 481 129 13ms 10 Jul 2022 196th davidbutt 477 130 9ms 26 Jul 2018 196th TheLazySquid 477 130 10ms 21 Dec 2022 198th DmyBor 473 131 13ms 4 May 2018 198th aaronze 🇦🇺 473 131 10ms 25 Apr 2021 198th Florian-Mt 473 131 9ms 23 Oct 2023 201st varbrad 466 133 9ms 5 Dec 2017 201st McErer 466 133 10ms 12 Jan 2019 201st vroup 🇩🇰 466 133 12ms 2 Oct 2022 204th OmegaB0t 463 134 9ms 5 Dec 2019 204th lunananananananana 🇨🇭 463 134 9ms 27 Jun 2021 206th marekMin 456 136 199ms 11 Jun 2019 207th roguh 🇬🇹 453 137 9ms 13 Oct 2024 208th ioioii 443 140 17ms 13 Dec 2019 209th msbranicky 440 141 9ms 8 Sep 2023 210th JOrE20 431 144 8ms 6 days ago 211th apatozi 428 145 9ms 10 May 2021 212th retrohun 425 146 9ms 21 Dec 2018 212th mikerees 425 146 10ms 5 Aug 2019 212th pandapawskat 425 146 9ms 2 Dec 2020 212th mokymok 🇺🇸 425 146 9ms 8 Nov 2021 212th zt14427 425 146 9ms 4 Mar 2023 212th itserasmus 425 146 10ms 17 Jan 2024 212th Mabeloid 🇳🇴 425 146 9ms 20 Sep 2024 219th Johannesd3 411 151 13ms 5 Apr 2020 220th Ranner198 397 156 10ms 13 Jun 2024 221st stadamdoki 395 157 10ms 17 May 2021 222nd MyXoToD 🇩🇪 390 159 10ms 8 May 2025 223rd jacobshu 380 163 9ms 15 Oct 2020 224th tfk333 310 200 13ms 23 Feb 2018 225th YoungjuneKwon 302 205 10ms 6 Dec 2018 First Prev 151–225 of 233 Next Last
