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 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 Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers 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 ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers 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 379th dommmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmy 786 42 10ms 15 May 2024 379th desecaw13 786 42 9ms 24 Jan 2025 379th ffelixm 786 42 9ms 11 Jun 2025 379th acollett89 786 42 9ms 15 Jul 2025 379th tknight-dev 786 42 9ms 25 Jul 2025 379th 52525rr 786 42 9ms 20 Oct 2025 379th matricronia 786 42 9ms 31 Jan 2026 379th Europe2048 786 42 9ms 4 hours ago 409th GiftOfDeath 767 43 10ms 5 Feb 2018 409th ian-odonnell 767 43 10ms 12 Mar 2018 409th dangilkerson 767 43 10ms 28 Sep 2018 409th paudr 767 43 9ms 4 May 2019 409th dorinoltean 767 43 10ms 1 Oct 2019 409th xAlien95 767 43 10ms 15 Jul 2020 409th Non-J 767 43 10ms 26 Sep 2020 409th redstarrer 767 43 9ms 12 Jan 2021 409th Bejofo 767 43 9ms 17 Mar 2021 409th jhunterkohler 767 43 9ms 19 May 2021 409th shaunjc 767 43 9ms 2 Jul 2021 409th wansacis 🇩🇪 767 43 9ms 26 Jul 2021 409th vidmantasa 767 43 14ms 24 Sep 2021 409th rollershutter 767 43 13ms 26 Nov 2021 409th nguyenl2 767 43 11ms 23 May 2022 409th GeorgeStechman 🇬🇧 767 43 10ms 19 Jun 2022 409th Mortis66666 767 43 11ms 28 Jun 2022 409th eshilo-draper 767 43 11ms 5 Oct 2022 409th dukeaccent 🇫🇮 767 43 11ms 23 Nov 2022 409th amiralitaheri 767 43 9ms 14 Feb 2023 409th Inbarw100 767 43 9ms 10 Jun 2023 409th mqyhlkahu 767 43 10ms 9 Sep 2023 409th SanderRuud 767 43 11ms 3 Oct 2023 409th unfinishedprogram 767 43 9ms 12 Dec 2023 409th epic-programmer-guy 767 43 9ms 2 Jan 2024 409th itserasmus 767 43 9ms 26 Jan 2024 409th inverseLorentz 🇦🇺 767 43 9ms 21 Feb 2024 409th CarsonChr 🇺🇸 767 43 9ms 6 Apr 2024 409th draem 767 43 9ms 31 Jul 2024 409th hippopotam00sehead 🇨🇦 767 43 9ms 11 Sep 2024 409th jdcodes28 767 43 10ms 11 Sep 2024 409th dtbao20 🇻🇳 767 43 8ms 30 Sep 2024 409th sulphemi 767 43 9ms 3 Apr 2025 409th ToE42 767 43 9ms 16 May 2025 409th Protothor 767 43 10ms 9 Jul 2025 409th csharpython 767 43 10ms 23 Jul 2025 409th bpharaldsson 767 43 10ms 21 days ago 446th owenoclee 750 44 12ms 7 Oct 2017 446th NegativePotato 750 44 12ms 20 Mar 2018 446th Sloff 750 44 9ms 15 May 2018 446th gschlect 750 44 10ms 22 Nov 2018 446th darryletc 750 44 10ms 4 Jan 2019 446th rowboat1 750 44 9ms 18 Feb 2019 446th oskarl 750 44 9ms 2 Aug 2019 446th ioioii 750 44 9ms 13 Dec 2019 446th lcba 750 44 9ms 14 Jan 2020 446th anissen 750 44 9ms 1 May 2020 446th generot 🇧🇬 750 44 11ms 2 Jul 2020 446th patterson-tom 750 44 11ms 26 Aug 2020 446th eecb 750 44 11ms 24 Nov 2020 446th Andre3582 750 44 9ms 25 Jan 2021 446th aguldstrand 750 44 8ms 18 Mar 2021 446th florton 750 44 9ms 6 Apr 2021 446th Ehrs 750 44 10ms 11 Apr 2021 446th willpiam 750 44 9ms 21 Sep 2021 446th c0d3-4-F00d 🇩🇪 750 44 9ms 19 Nov 2021 446th shreyasminocha 750 44 10ms 11 Dec 2021 446th AlexNeep 750 44 9ms 28 Mar 2022 446th DaCuteRaccoon 750 44 10ms 8 Apr 2022 446th JavaScriptizer101 750 44 12ms 19 May 2022 446th destofr 750 44 10ms 23 Aug 2022 446th ashtraypettingzoo 🇺🇸 750 44 8ms 16 Feb 2023 446th joakim-ronning 750 44 11ms 23 May 2023 446th biocommando 🇫🇮 750 44 9ms 22 Aug 2023 446th Maximizer02 750 44 9ms 4 Oct 2023 446th TheDarkThatBarks 750 44 9ms 31 Jan 2024 446th jbjd 750 44 11ms 24 Feb 2024 446th xyangst 750 44 8ms 8 Oct 2024 446th TheAtrossian 750 44 17ms 27 Mar 2025 446th codewrite 🇬🇧 750 44 11ms 18 Apr 2025 446th blaztoma 🇱🇹 750 44 9ms 17 Aug 2025 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