Fibonacci 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL 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 ><> ALGOL 68 ArkScript 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 APL 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 449th codewrite 🇬🇧 750 44 8ms 18 Apr 2025 449th blaztoma 🇱🇹 750 44 9ms 17 Aug 2025 449th audigamer 750 44 9ms 19 Oct 2025 449th c-py 750 44 9ms 2 Nov 2025 485th Nuottajarvi 733 45 9ms 9 Aug 2018 485th ConorOBrien-Foxx 733 45 9ms 20 Dec 2018 485th skps2010 733 45 9ms 1 Jan 2019 485th andriynoskov 733 45 10ms 20 Aug 2019 485th lissitz 733 45 9ms 27 Apr 2020 485th synchromic 733 45 10ms 8 May 2020 485th dsntzn 🇸🇰 733 45 10ms 13 Aug 2020 485th Zkrgu 733 45 9ms 12 Dec 2020 485th underdude 733 45 9ms 7 Jan 2021 485th sech1p 🇵🇱 733 45 9ms 26 Jun 2021 485th garrisonhh 733 45 9ms 9 Oct 2021 485th HenryTy83 733 45 10ms 4 Dec 2022 485th jorbDehmel 🇺🇸 733 45 9ms 7 Apr 2023 485th adamnielson42 🇺🇸 733 45 9ms 24 Apr 2023 485th raszpi 🇭🇺 733 45 9ms 1 Sep 2023 485th yuchuehw 733 45 10ms 1 Jan 2024 485th kydogia 733 45 9ms 28 Mar 2024 485th Voltrifrodec 🇸🇰 733 45 9ms 25 Nov 2025 503rd skagget77 717 46 9ms 10 Oct 2017 503rd Erutuon 717 46 9ms 21 Feb 2018 503rd OmegaB0t 717 46 10ms 19 Apr 2018 503rd anananlyjlyj 717 46 9ms 4 Jul 2018 503rd dieckie 717 46 9ms 28 Feb 2019 503rd arntj 717 46 9ms 13 Apr 2019 503rd Ranner198 717 46 10ms 15 Nov 2019 503rd dijs 717 46 10ms 5 Dec 2019 503rd Kauhentus 717 46 9ms 7 Dec 2019 503rd unoctium1 717 46 9ms 14 Dec 2019 503rd vonKrafft 717 46 10ms 25 Mar 2020 503rd jcheritat 717 46 9ms 6 Sep 2020 503rd jcsawyer123 717 46 9ms 17 Sep 2020 503rd godraadam 717 46 9ms 13 Apr 2021 503rd Y0UR-U5ERNAME 717 46 10ms 3 Sep 2021 503rd ethandhunt 717 46 9ms 19 Sep 2021 503rd martinnorling 🇸🇪 717 46 9ms 8 Feb 2022 503rd sebmandal 717 46 9ms 10 May 2022 503rd C0de5mith 🇺🇸 717 46 9ms 3 Aug 2022 503rd Ephellon 717 46 9ms 4 Dec 2022 503rd olivermrose 🇺🇸 717 46 10ms 17 Jan 2023 503rd eiburns 717 46 10ms 9 Oct 2023 503rd loganmacdougall 🇨🇦 717 46 9ms 19 Jan 2024 503rd Jaro32768 🇸🇰 717 46 9ms 8 Feb 2024 503rd Palladium02 717 46 9ms 4 May 2025 503rd kellantech 717 46 9ms 17 Dec 2025 529th Kladdkaka 702 47 9ms 9 Feb 2018 529th HippasusSurd 702 47 10ms 25 Mar 2018 529th sgtdck 702 47 9ms 16 Oct 2018 529th NotGate 702 47 8ms 21 Jan 2019 529th Cortan122 702 47 9ms 26 Feb 2019 529th shayded-exe 702 47 9ms 10 Apr 2019 529th Jooraz 702 47 9ms 12 May 2019 529th nkansal96 702 47 9ms 21 May 2019 529th JustinDowty 702 47 9ms 12 Jun 2020 529th Juici 702 47 9ms 17 Sep 2020 529th berenteb 🇭🇺 702 47 9ms 11 Dec 2020 529th flowernal 702 47 9ms 25 Dec 2020 529th lukalotl 702 47 9ms 24 May 2021 529th BrettMerri 702 47 10ms 1 Dec 2021 529th Domicnt 702 47 11ms 2 Jan 2022 529th Mednoob 702 47 9ms 8 Sep 2022 529th ShiraJoseph 🇺🇸 702 47 9ms 26 Feb 2023 529th KjeldSchmidt 702 47 9ms 23 Apr 2023 529th bryanmytko 702 47 9ms 7 Sep 2023 529th Seis 702 47 9ms 14 May 2024 529th heanyang1 702 47 9ms 22 Apr 2025 529th timothytomato 702 47 10ms 26 May 2025 529th Florian-Pubert 702 47 9ms 25 Jun 2025 529th jacekwladzinski 702 47 9ms 2 Oct 2025 529th johnkiernander 702 47 8ms 12 Dec 2025 554th jsoendermann 688 48 10ms 13 Dec 2017 554th belkamax05 688 48 9ms 26 Mar 2018 554th cdanek 688 48 9ms 2 Apr 2018 554th MechaFinch 688 48 8ms 19 Feb 2019 554th TTWNO 688 48 9ms 15 Apr 2019 554th jrburga 688 48 9ms 18 Nov 2019 554th marekMin 688 48 9ms 10 Jun 2020 First Prev 481–560 of 872 Next Last