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 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 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 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 612th msbranicky 623 53 10ms 3 Jul 2024 612th tylerguy 623 53 10ms 1 Dec 2025 643rd TravisBumgarner 611 54 28ms 31 Jan 2019 643rd theDigg 611 54 57ms 21 Jun 2019 643rd guptaniraj93 611 54 9ms 30 Jul 2019 643rd sobhanbera 611 54 9ms 22 Jun 2020 643rd the-north-dev 611 54 10ms 28 Aug 2020 643rd ashleylamont 611 54 10ms 24 Nov 2020 643rd ytaki0801 🇯🇵 611 54 9ms 19 Jun 2021 643rd uiamn 611 54 56ms 6 Sep 2022 643rd 104210 611 54 11ms 14 Sep 2022 643rd LeftPathLane 611 54 10ms 1 Nov 2022 643rd JesseNoEyes 🇺🇸 611 54 10ms 25 Sep 2024 643rd goodwyna21 611 54 25ms 5 Nov 2024 643rd n3uromanc3r 611 54 24ms 3 Dec 2024 656th obadiar-zz 600 55 26ms 7 Oct 2017 656th robertDurst 600 55 25ms 7 Oct 2017 656th DanSmelly 600 55 10ms 25 Jun 2020 656th brownie-in-motion 600 55 10ms 11 Jul 2020 656th pedromcsousa 🇵🇹 600 55 27ms 30 Nov 2020 656th lewdev 🇺🇸 600 55 25ms 26 Jul 2021 656th mckymsh 600 55 8ms 1 Mar 2022 656th Gravitonic 600 55 9ms 15 Dec 2022 656th IchBinMichMarkus 600 55 8ms 11 Jul 2023 656th weleho 600 55 10ms 18 Sep 2023 656th A11yship 600 55 10ms 2 Nov 2023 656th RockOfStone 600 55 10ms 23 Mar 2024 656th ErikGXDev 600 55 11ms 26 Oct 2024 656th 4very 600 55 36ms 9 Jun 2025 670th d4rkne55 589 56 11ms 2 Mar 2018 670th pbarath 589 56 11ms 13 Apr 2021 670th Ashikpaul 🇮🇳 589 56 21ms 9 May 2021 670th hpr 589 56 18ms 13 Jun 2021 670th E2dgar 589 56 8ms 30 Jan 2022 670th Simon3995 🇳🇱 589 56 10ms 10 Mar 2022 670th aneurin-h 589 56 11ms 22 Nov 2022 670th griffinschreiber 589 56 9ms 30 Oct 2024 670th MID246 589 56 9ms 14 Nov 2024 670th Laellekoenig 589 56 28ms 28 Oct 2025 680th jacobsmith 579 57 29ms 21 Jan 2019 680th phpboyscout 579 57 11ms 3 Sep 2019 680th jling90 579 57 56ms 16 Dec 2019 680th maximevredeveld 579 57 10ms 17 Jan 2021 680th kungozan 579 57 10ms 29 Mar 2021 680th benStre 579 57 23ms 19 Feb 2022 680th TheCod-r 🇦🇶 579 57 9ms 26 Feb 2023 680th blaircalderwood 579 57 10ms 25 Oct 2023 688th rkichenama 569 58 29ms 26 Feb 2018 688th sharabiania 569 58 26ms 27 Feb 2018 688th davidbutt 569 58 9ms 26 Jul 2018 688th visvirial 569 58 11ms 19 Dec 2018 688th tadeokondrak 569 58 29ms 27 Apr 2019 688th vladyslavprosolupov 569 58 27ms 30 May 2019 688th Koljenka 569 58 30ms 15 Dec 2019 688th lilyyy411 569 58 10ms 10 Sep 2021 688th JayantaNath 569 58 9ms 17 Sep 2021 688th AndresCardonaDev 569 58 9ms 7 Nov 2021 688th ThibWillFulll 569 58 49ms 5 May 2022 688th cingulataluke 569 58 9ms 21 Oct 2022 688th ptforness 569 58 9ms 31 Dec 2022 688th infostreams 569 58 8ms 11 Jul 2023 688th 0vidiu 569 58 12ms 13 Dec 2023 703rd verticall 559 59 11ms 28 Jul 2019 703rd atsheridan 559 59 28ms 7 Feb 2020 703rd greensebastian 559 59 9ms 12 May 2020 703rd CataMates 559 59 9ms 2 Nov 2020 703rd omarpr 559 59 10ms 12 Apr 2021 703rd 2pichar 559 59 9ms 10 Nov 2022 703rd 123mjb 559 59 9ms 25 Jun 2025 710th Moritz-Siegel 550 60 10ms 11 Jan 2018 710th SamirHodzic 550 60 11ms 12 Oct 2018 710th MaartenStaa 550 60 26ms 5 Jan 2020 710th ze-h 🇺🇸 550 60 9ms 10 Jan 2022 710th MattShaile 550 60 10ms 20 Mar 2022 710th Cinnamonsroll 550 60 9ms 18 Oct 2022 710th MisterrLuck 550 60 9ms 31 Jul 2024 710th noahhorlacher 550 60 10ms 8 Dec 2024 718th rxl3 541 61 24ms 15 Mar 2018 718th wrauner 541 61 11ms 6 Aug 2019 718th PeriBooty 541 61 28ms 26 Nov 2019 First Prev 641–720 of 860 Next Last