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 626th ereztaiar 🇮🇱 623 53 58ms 12 Aug 2021 626th lukaskairys 623 53 27ms 27 Sep 2021 626th Clonex 623 53 27ms 23 Nov 2021 626th janleigh 🇵🇭 623 53 9ms 31 May 2022 626th MiguelEXE 623 53 27ms 8 Jun 2022 626th PyPylia 🇦🇺 623 53 27ms 24 Sep 2022 626th mebens 623 53 26ms 17 Nov 2022 626th MCausc78 🇺🇦 623 53 9ms 29 Dec 2022 626th RasmusBV 623 53 27ms 19 Feb 2023 626th xnacly 🇩🇪 623 53 10ms 30 Jun 2023 626th RobertHoeh 623 53 27ms 9 Sep 2023 626th Sciman101 623 53 11ms 16 Nov 2023 626th yuigoto 623 53 31ms 25 Nov 2023 626th FISHARMNIC 623 53 27ms 15 Jan 2024 626th msbranicky 623 53 10ms 3 Jul 2024 626th tylerguy 623 53 10ms 1 Dec 2025 657th TravisBumgarner 611 54 28ms 31 Jan 2019 657th theDigg 611 54 56ms 21 Jun 2019 657th guptaniraj93 611 54 9ms 30 Jul 2019 657th sobhanbera 611 54 10ms 22 Jun 2020 657th the-north-dev 611 54 10ms 28 Aug 2020 657th ashleylamont 611 54 10ms 24 Nov 2020 657th ytaki0801 🇯🇵 611 54 9ms 19 Jun 2021 657th uiamn 611 54 57ms 6 Sep 2022 657th 104210 611 54 10ms 14 Sep 2022 657th LeftPathLane 611 54 10ms 1 Nov 2022 657th JesseNoEyes 🇺🇸 611 54 10ms 25 Sep 2024 657th goodwyna21 611 54 27ms 5 Nov 2024 657th n3uromanc3r 611 54 37ms 3 Dec 2024 670th obadiar-zz 600 55 31ms 7 Oct 2017 670th robertDurst 600 55 26ms 7 Oct 2017 670th DanSmelly 600 55 11ms 25 Jun 2020 670th brownie-in-motion 600 55 10ms 11 Jul 2020 670th pedromcsousa 🇵🇹 600 55 30ms 30 Nov 2020 670th lewdev 🇺🇸 600 55 29ms 26 Jul 2021 670th mckymsh 600 55 12ms 1 Mar 2022 670th Gravitonic 600 55 10ms 15 Dec 2022 670th IchBinMichMarkus 600 55 9ms 11 Jul 2023 670th weleho 600 55 10ms 18 Sep 2023 670th A11yship 600 55 9ms 2 Nov 2023 670th RockOfStone 600 55 10ms 23 Mar 2024 670th ErikGXDev 600 55 10ms 26 Oct 2024 670th 4very 600 55 36ms 9 Jun 2025 684th d4rkne55 589 56 10ms 2 Mar 2018 684th pbarath 589 56 10ms 13 Apr 2021 684th Ashikpaul 🇮🇳 589 56 25ms 9 May 2021 684th hpr 589 56 21ms 13 Jun 2021 684th E2dgar 589 56 10ms 30 Jan 2022 684th Simon3995 🇳🇱 589 56 12ms 10 Mar 2022 684th aneurin-h 589 56 11ms 22 Nov 2022 684th griffinschreiber 589 56 11ms 30 Oct 2024 684th MID246 589 56 11ms 14 Nov 2024 684th Laellekoenig 589 56 28ms 28 Oct 2025 694th jacobsmith 579 57 28ms 21 Jan 2019 694th phpboyscout 579 57 11ms 3 Sep 2019 694th jling90 579 57 57ms 16 Dec 2019 694th maximevredeveld 579 57 9ms 17 Jan 2021 694th kungozan 579 57 10ms 29 Mar 2021 694th benStre 579 57 23ms 19 Feb 2022 694th TheCod-r 🇦🇶 579 57 10ms 26 Feb 2023 694th blaircalderwood 579 57 10ms 25 Oct 2023 702nd rkichenama 569 58 26ms 26 Feb 2018 702nd sharabiania 569 58 27ms 27 Feb 2018 702nd davidbutt 569 58 10ms 26 Jul 2018 702nd visvirial 569 58 10ms 19 Dec 2018 702nd tadeokondrak 569 58 40ms 27 Apr 2019 702nd vladyslavprosolupov 569 58 33ms 30 May 2019 702nd Koljenka 569 58 28ms 15 Dec 2019 702nd lilyyy411 569 58 9ms 10 Sep 2021 702nd JayantaNath 569 58 9ms 17 Sep 2021 702nd AndresCardonaDev 569 58 11ms 7 Nov 2021 702nd ThibWillFulll 569 58 50ms 5 May 2022 702nd cingulataluke 569 58 10ms 21 Oct 2022 702nd ptforness 569 58 9ms 31 Dec 2022 702nd infostreams 569 58 13ms 11 Jul 2023 702nd 0vidiu 569 58 10ms 13 Dec 2023 717th verticall 559 59 10ms 28 Jul 2019 717th atsheridan 559 59 30ms 7 Feb 2020 717th greensebastian 559 59 10ms 12 May 2020 717th CataMates 559 59 10ms 2 Nov 2020 First Prev 641–720 of 876 Next Last