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 800th DaleNaci 458 72 10ms 19 Jul 2018 800th Cr3aHal0 458 72 9ms 14 Jun 2019 800th Tert0 458 72 27ms 24 Apr 2021 800th scottjones4k 458 72 11ms 5 Jul 2022 800th sm1lko 458 72 11ms 14 Dec 2022 800th logalex8369 🇺🇸 458 72 27ms 18 Dec 2025 807th plibither8 446 74 10ms 27 Apr 2020 807th TheZwierzLF 🇵🇱 446 74 32ms 9 Jan 2026 809th robertfairley 440 75 27ms 21 Feb 2018 809th dillon-duncando 440 75 26ms 21 Dec 2021 809th Hyperoplex145 440 75 10ms 2 Jan 2026 812th sethimcclaine 434 76 13ms 5 Apr 2019 812th James-revans 434 76 9ms 31 Dec 2019 812th thacuber2a03 🇩🇴 434 76 9ms 24 Jul 2024 815th tfk333 429 77 10ms 23 Feb 2018 816th skinnersp 423 78 35ms 13 Jul 2020 816th PoseidonCoder 423 78 9ms 25 Aug 2020 816th Meatballman 423 78 9ms 1 Aug 2022 816th MyXoToD 🇩🇪 423 78 13ms 7 May 2025 820th marissa999 418 79 10ms 9 Jan 2018 820th StronkCheese 🇺🇸 418 79 10ms 13 Mar 2023 822nd Starwort 🇬🇧 413 80 14ms 15 Dec 2018 822nd marea 413 80 9ms 18 Jun 2020 824th dcure73 407 81 10ms 7 Jun 2019 824th tickct 407 81 29ms 13 Sep 2019 824th shawphy 407 81 10ms 15 Oct 2021 824th PowershellKnut 🇳🇴 407 81 10ms 7 Jan 2024 828th jakethakur 402 82 9ms 30 Mar 2018 828th steedwards241 402 82 10ms 12 Nov 2020 828th brodie-m 402 82 11ms 24 Nov 2022 828th rushi0326 402 82 10ms 26 Dec 2023 832nd pashabou 398 83 11ms 5 Apr 2018 832nd WilleyOhana 398 83 27ms 26 Feb 2021 832nd rossmacfarlane 398 83 11ms 9 Nov 2022 835th MarlonClark 393 84 9ms 30 Dec 2019 835th ThePyProgrammer 393 84 10ms 14 Dec 2021 835th ahorihan 393 84 12ms 3 Aug 2022 838th syedad218 384 86 12ms 12 Jul 2023 839th MatthewDietrich 379 87 37ms 6 Jun 2018 840th dkdub 371 89 10ms 2 Jun 2018 840th dbkirk4211 371 89 11ms 3 May 2024 840th jusaka 371 89 10ms 86 mins ago 843rd aloehan 367 90 10ms 18 Dec 2017 843rd Designer023 367 90 10ms 7 Feb 2020 843rd feherd 367 90 10ms 15 Nov 2023 846th hacker19374 363 91 10ms 8 Mar 2023 846th JackieAlacrity2373 363 91 10ms 14 May 2024 848th nickforddev 359 92 10ms 28 Nov 2023 849th Alice-Cheshire 355 93 10ms 26 Feb 2018 850th pablaber 347 95 29ms 28 Sep 2017 851st kelvinauta 340 97 29ms 28 Dec 2025 852nd kevinnaviapaiva 337 98 10ms 17 Feb 2025 853rd polyrtm 330 100 10ms 17 Nov 2018 853rd jtaxen 330 100 10ms 18 Mar 2022 855th itsabdelrahman 324 102 9ms 22 May 2018 856th Noah-Fox 311 106 9ms 1 Jun 2022 857th mathu99 287 115 10ms 11 Oct 2017 858th ryanarobbins 284 116 27ms 4 Jun 2020 859th Raka-Raka 282 117 9ms 18 Jan 2020 860th zbaklund 277 119 11ms 12 Apr 2018 860th danielproctor31 277 119 10ms 28 Mar 2019 860th patrick96 277 119 11ms 4 Jan 2020 863rd jcwebhole 275 120 10ms 28 Jun 2018 864th shuabrannigan 260 127 11ms 3 Apr 2023 865th AlexGoldthorpe 250 132 10ms 23 Oct 2020 866th nephila-nacrea 🇬🇧 236 140 10ms 17 Aug 2020 867th KatieLG-Transpiler 🇬🇧 232 142 10ms 23 Jun 2022 868th alvincentinio 209 158 10ms 9 Jul 2019 869th NathanGabrielson 205 161 9ms 30 Mar 2022 870th mothcolada 🇺🇸 192 172 10ms 13 Apr 2021 870th mokymok 🇺🇸 192 172 10ms 9 Nov 2021 872nd kmegoryc 177 186 12ms 29 Oct 2019 873rd Yen-Peng 173 191 11ms 14 Jul 2020 874th PaulCouthouis 167 198 13ms 30 Nov 2022 875th BKGSr2 164 201 9ms 17 Mar 2023 876th bensrobe 136 243 10ms 25 Feb 2019 877th seanleken 123 269 27ms 7 Oct 2019 First Prev 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