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 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 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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 303rd clementblaudeau 825 40 8ms 8 Jun 2021 303rd Omega65536 🇩🇪 825 40 9ms 23 Jun 2021 303rd ManuCoding 825 40 9ms 27 Sep 2021 303rd nathanadams 🇳🇿 825 40 10ms 5 Oct 2021 303rd BambooleanLogic 🇸🇪 825 40 10ms 26 Nov 2021 303rd johanrosenson 825 40 8ms 8 Dec 2021 303rd Garklein 🇨🇦 825 40 14ms 6 Jan 2022 303rd Luca2812 825 40 9ms 14 Jan 2022 303rd Heathcorp 🇦🇺 825 40 8ms 31 Mar 2022 303rd wwsalmon 825 40 9ms 8 May 2022 303rd maxpelic 🇺🇸 825 40 10ms 5 Jul 2022 303rd ijchen 825 40 9ms 27 Sep 2022 303rd LukeBridges 🇬🇧 825 40 9ms 14 Nov 2022 303rd dzshn 825 40 9ms 3 Dec 2022 303rd TaserTheFox 🇺🇸 825 40 8ms 12 Dec 2022 303rd ItsMeNoobieboy 825 40 8ms 23 Dec 2022 303rd zakariamouhid 825 40 9ms 9 Jan 2023 303rd davyboyhayes 825 40 9ms 24 Jan 2023 303rd AnnoyedArt1256 825 40 10ms 8 Sep 2023 303rd two-bad 🇬🇧 825 40 9ms 23 Nov 2023 303rd MWI-polygolf 825 40 10ms 6 Dec 2023 303rd stellartux 825 40 8ms 26 Dec 2023 303rd steffan-polygolf 825 40 9ms 14 Feb 2024 303rd Michiocre 825 40 9ms 19 Mar 2024 303rd Null000 🇳🇿 825 40 9ms 28 May 2024 303rd LostSyntax21 🇬🇧 825 40 9ms 10 Sep 2024 303rd Stockoh 🇫🇷 825 40 9ms 4 Nov 2024 303rd Ultra814 825 40 9ms 29 Aug 2025 303rd alexsave 825 40 9ms 13 Oct 2025 303rd Babafaba 825 40 9ms 22 Oct 2025 303rd FortuiteMan 🇫🇷 825 40 10ms 28 Nov 2025 303rd tomh1012 825 40 9ms 3 Dec 2025 303rd amazingalek 825 40 9ms 20 Dec 2025 354th oitio 805 41 9ms 31 May 2019 354th shraiwi 805 41 8ms 22 Nov 2019 354th entibo 805 41 9ms 10 Dec 2019 354th alasdair-greenland 805 41 9ms 4 Mar 2020 354th UBKorkut 805 41 9ms 23 Feb 2021 354th Pie42 805 41 10ms 18 Apr 2021 354th aaronze 🇦🇺 805 41 10ms 29 Apr 2021 354th Great-Gamer 805 41 9ms 23 Feb 2022 354th CedricGebistorf 805 41 9ms 4 Mar 2022 354th SkimnerPhi 805 41 9ms 11 Mar 2022 354th gurglemurgle5 805 41 9ms 18 Apr 2022 354th aydynx 805 41 10ms 25 Jan 2023 354th guywithnose 805 41 9ms 12 May 2023 354th efgen 805 41 8ms 26 Dec 2023 354th weliveinhell 🇭🇹 805 41 9ms 28 Dec 2023 354th roupiq 🇵🇱 805 41 8ms 15 Feb 2024 354th PyryL 🇫🇮 805 41 9ms 23 Aug 2024 354th NickTheEASDude 🇺🇸 805 41 9ms 29 Aug 2024 354th SwordF-Official 805 41 8ms 2 Jun 2025 354th TRexOnGit 805 41 9ms 29 Jul 2025 354th Evankhell0 805 41 9ms 8 Aug 2025 354th 77Tigers 805 41 10ms 8 days ago 376th ohailstorm 786 42 9ms 9 Mar 2018 376th rumblesan 786 42 9ms 8 Dec 2018 376th phpshko 786 42 11ms 6 Apr 2019 376th AaronGarbut 786 42 9ms 30 Jul 2019 376th vgroen 786 42 9ms 3 Jan 2020 376th NatNgs 786 42 10ms 7 Jan 2020 376th Michal-Miky-Jankovsky 786 42 9ms 4 May 2020 376th modellking 786 42 10ms 3 Jun 2020 376th juanmoncada 786 42 9ms 10 Aug 2020 376th hyvyys 786 42 9ms 11 Sep 2020 376th tpiechaczek 🇵🇱 786 42 9ms 22 Dec 2020 376th xkacer 🇨🇿 786 42 9ms 24 Jan 2021 376th heypwesto 🇳🇿 786 42 9ms 16 Apr 2021 376th evalPenny 🇰🇷 786 42 9ms 6 Jul 2021 376th SpareManiKatti 786 42 8ms 15 Jul 2021 376th Giga-Bowser 786 42 9ms 20 Dec 2021 376th fourth-bit 786 42 9ms 14 Jan 2022 376th ledietz 786 42 9ms 11 Feb 2022 376th Anonymousellama21 786 42 10ms 11 Feb 2022 376th moikaturns 🇬🇧 786 42 10ms 18 Oct 2022 376th Tavress 786 42 8ms 11 May 2023 376th charliegaming 786 42 9ms 3 Oct 2023 376th dommmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmy 786 42 9ms 15 May 2024 376th desecaw13 786 42 9ms 24 Jan 2025 376th ffelixm 786 42 9ms 11 Jun 2025 First 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