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 217th enrico-canva 892 37 9ms 7 Aug 2023 217th adriweb 🇫🇷 892 37 9ms 8 Aug 2023 217th jbt 892 37 12ms 25 Dec 2023 217th HumanoidCPU 892 37 9ms 16 Mar 2024 217th SpiritAxolotl 🇺🇸 892 37 11ms 22 Mar 2024 217th deancureton 892 37 9ms 24 Mar 2024 217th Xzyaihni 892 37 9ms 26 Apr 2024 217th daniel-cardone 892 37 9ms 6 Jul 2024 217th Mabeloid 🇳🇴 892 37 11ms 13 Oct 2024 217th wh3n3v3r 🇨🇿 892 37 9ms 13 Nov 2024 217th andrewjc2000 892 37 11ms 7 Mar 2025 217th aliakseikalosha 892 37 10ms 5 Jul 2025 217th JOrE20 892 37 10ms 30 Dec 2025 217th balloffur 892 37 10ms 1 Jan 2026 217th Roachbones 892 37 10ms 16 Jan 2026 217th Nathan-Masala 892 37 11ms 72 mins ago 257th rwellens 868 38 10ms 29 Dec 2017 257th justecorruptio 868 38 10ms 13 Apr 2018 257th jackkav 868 38 10ms 1 Jul 2018 257th mintypython 868 38 12ms 14 Oct 2018 257th saramaebee 868 38 10ms 14 Oct 2018 257th tangweikun 868 38 10ms 23 Oct 2018 257th cryosis7 868 38 11ms 28 Nov 2018 257th dee-gomma 868 38 9ms 27 Mar 2019 257th handisb 868 38 11ms 20 Oct 2019 257th lukedigby 868 38 11ms 28 Mar 2020 257th marcin7Cd 868 38 10ms 15 May 2020 257th davishyer 868 38 10ms 22 Mar 2021 257th roor0 868 38 10ms 22 Mar 2021 257th kayahr 868 38 12ms 18 Jun 2021 257th blasio99 868 38 9ms 2 Nov 2021 257th daniel-pedersen 🇸🇪 868 38 11ms 6 Mar 2022 257th tcrognon 868 38 10ms 23 May 2022 257th Kesefon 868 38 10ms 5 Nov 2022 257th krcs 🇵🇱 868 38 10ms 27 Nov 2022 257th nstearns96 🇬🇧 868 38 12ms 28 Nov 2022 257th FrederikHutfless 🇩🇪 868 38 11ms 23 Dec 2022 257th Mazn3k 868 38 11ms 11 Feb 2023 257th Just4FunCoder 868 38 9ms 6 Dec 2023 257th Jonatan6 🇩🇰 868 38 10ms 15 Mar 2024 257th Emsa001 868 38 9ms 18 May 2024 257th CheeseCake628 🇳🇴 868 38 10ms 7 Jan 2026 283rd tynovsky 846 39 11ms 21 Oct 2017 283rd mcammara 846 39 11ms 25 Jul 2018 283rd Nefsen402 846 39 11ms 24 Jan 2019 283rd Mikaeel66 846 39 11ms 8 Nov 2019 283rd pomber 846 39 9ms 8 Jul 2020 283rd danielyule 846 39 10ms 9 Aug 2020 283rd StefanTifrea 846 39 12ms 5 Oct 2020 283rd ashscodes 846 39 10ms 2 Nov 2020 283rd bastienvoirin 🇫🇷 846 39 10ms 28 Nov 2020 283rd Athe81 846 39 10ms 8 Jan 2021 283rd sultan 846 39 10ms 5 May 2021 283rd TechNolaByte 846 39 10ms 26 Nov 2021 283rd pavelb 846 39 10ms 8 Aug 2022 283rd GreenBeansAgainstVeganism 846 39 10ms 13 Jan 2023 283rd KevinAndryan 846 39 11ms 10 Jul 2023 283rd Davr1 🇨🇿 846 39 10ms 14 Oct 2023 283rd bsara 846 39 9ms 21 Oct 2023 283rd gussy420 846 39 11ms 27 Oct 2023 283rd ollyspooner 846 39 11ms 17 Nov 2023 283rd 0scarB 846 39 10ms 15 Jun 2024 283rd yb1yb1 846 39 9ms 6 Oct 2024 283rd a6166231 🇨🇳 846 39 9ms 15 May 2025 283rd Program-Pi 846 39 11ms 5 Mar 2026 306th rault-a 825 40 10ms 22 Aug 2018 306th kevlened 825 40 14ms 22 Oct 2018 306th aschui 825 40 10ms 5 Nov 2018 306th smnjameson 825 40 10ms 26 Apr 2019 306th alexkunin 825 40 10ms 3 Jul 2019 306th leon-w 825 40 11ms 5 Jan 2020 306th voytasify 🇵🇱 825 40 10ms 15 May 2020 306th itiievskyi 🇺🇦 825 40 11ms 4 Aug 2020 306th EFHIII 825 40 10ms 7 Aug 2020 306th nickrodgers42 825 40 10ms 5 Oct 2020 306th Waffle3z 825 40 10ms 27 Oct 2020 306th GusGold 825 40 11ms 16 Nov 2020 306th ReidZ3 🇺🇸 825 40 10ms 27 Nov 2020 306th MFogleman 825 40 10ms 15 Feb 2021 306th doge1338 825 40 9ms 20 Mar 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