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 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 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 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 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 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 513th BrettMerri 702 47 9ms 1 Dec 2021 513th Domicnt 702 47 9ms 2 Jan 2022 513th Mednoob 702 47 10ms 8 Sep 2022 513th ShiraJoseph 🇺🇸 702 47 9ms 26 Feb 2023 513th KjeldSchmidt 702 47 8ms 23 Apr 2023 513th bryanmytko 702 47 10ms 7 Sep 2023 513th Seis 702 47 9ms 14 May 2024 513th heanyang1 702 47 8ms 22 Apr 2025 513th timothytomato 702 47 8ms 26 May 2025 513th Florian-Pubert 702 47 9ms 25 Jun 2025 513th jacekwladzinski 702 47 9ms 2 Oct 2025 537th jsoendermann 688 48 8ms 13 Dec 2017 537th belkamax05 688 48 8ms 26 Mar 2018 537th cdanek 688 48 9ms 2 Apr 2018 537th MechaFinch 688 48 9ms 19 Feb 2019 537th TTWNO 688 48 8ms 15 Apr 2019 537th jrburga 688 48 9ms 18 Nov 2019 537th marekMin 688 48 9ms 10 Jun 2020 537th nico-bachner 688 48 9ms 28 Dec 2020 537th LakeThomason 688 48 10ms 1 Jun 2021 537th hymanimy 688 48 9ms 27 Jul 2021 537th delgoodie 688 48 9ms 19 Oct 2021 537th CutOffFrequency 688 48 8ms 31 Oct 2022 537th Weston49 688 48 9ms 11 Dec 2022 537th Baxi-codes 688 48 10ms 25 Dec 2022 537th kellantech 688 48 12ms 23 May 2023 537th fkantelberg 688 48 10ms 15 Jul 2023 537th Posandu 688 48 9ms 23 Sep 2023 537th azure-blondon 688 48 9ms 15 Jul 2024 537th abhishekg999 688 48 9ms 21 Sep 2024 537th gigaprofisi 🇺🇸 688 48 9ms 19 days ago 557th ArturLange 673 49 8ms 31 Aug 2018 557th felixpackard 673 49 8ms 16 Mar 2020 557th hvanderdys 673 49 8ms 10 Sep 2020 557th stadamdoki 673 49 9ms 12 Apr 2021 557th cubedhuang 673 49 9ms 23 Mar 2022 557th cmoedk 673 49 9ms 5 Nov 2022 557th Florian-Mt 673 49 10ms 20 Nov 2023 557th SrGalletaEXT 673 49 8ms 22 Jul 2024 557th xShadowBlade 673 49 9ms 24 Nov 2024 557th Charlie85270 673 49 9ms 25 Jun 2025 567th petewritescode 660 50 9ms 14 Dec 2018 567th rzhade3 660 50 9ms 22 May 2020 567th taimanh229 660 50 9ms 31 Dec 2020 567th matricronia 660 50 9ms 6 May 2021 567th MichalMarsalek 🇨🇿 660 50 9ms 29 Nov 2021 567th fitzdotlol 🇺🇸 660 50 9ms 18 Feb 2022 567th Bonjour27891 🇻🇳 660 50 10ms 12 Mar 2022 567th jlivas 660 50 9ms 1 Jul 2022 567th tse-jp 🇯🇵 660 50 8ms 30 Nov 2022 567th tuxillator 660 50 9ms 15 Dec 2022 567th lucipas 660 50 9ms 8 May 2024 567th Vexxter9 🇳🇱 660 50 9ms 20 Sep 2024 567th allistersascha 660 50 9ms 11 Oct 2024 567th Dddatt 660 50 9ms 9 Jan 2025 567th Zach1031 660 50 9ms 10 days ago 582nd genius257 647 51 10ms 23 Mar 2018 582nd stanley-c-so 647 51 10ms 4 Oct 2019 582nd Jumprocks1 647 51 10ms 11 Feb 2020 582nd jn-lp 🇺🇦 647 51 9ms 31 Oct 2020 582nd RedstoneTim 647 51 9ms 26 Jun 2021 582nd aksyristos 647 51 9ms 27 Oct 2022 582nd rdscott-vrsk 647 51 9ms 12 May 2023 582nd Ralac07 🇦🇺 647 51 9ms 18 Apr 2025 590th bobesa 635 52 28ms 16 Oct 2017 590th xen-the 635 52 9ms 10 Oct 2018 590th Caylyn 635 52 10ms 22 Dec 2018 590th joeytwiddle 635 52 58ms 4 Feb 2019 590th phillygogo 635 52 9ms 5 Jun 2019 590th wouterraateland 635 52 9ms 8 Jul 2019 590th pg98 635 52 10ms 4 Sep 2019 590th paavohuhtala 635 52 31ms 4 Jan 2020 590th jankaifer 635 52 26ms 8 Aug 2020 590th lowlighter 635 52 30ms 30 Oct 2020 590th 102 635 52 8ms 18 Nov 2020 First Prev 526–600 of 852 Next Last