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 719th greensebastian 559 59 10ms 12 May 2020 719th CataMates 559 59 9ms 2 Nov 2020 719th omarpr 559 59 9ms 12 Apr 2021 719th 2pichar 559 59 11ms 10 Nov 2022 719th 123mjb 559 59 10ms 25 Jun 2025 726th Moritz-Siegel 550 60 9ms 11 Jan 2018 726th SamirHodzic 550 60 10ms 12 Oct 2018 726th MaartenStaa 550 60 26ms 5 Jan 2020 726th ze-h 🇺🇸 550 60 10ms 10 Jan 2022 726th MattShaile 550 60 9ms 20 Mar 2022 726th Cinnamonsroll 550 60 9ms 18 Oct 2022 726th MisterrLuck 550 60 10ms 31 Jul 2024 726th noahhorlacher 550 60 12ms 8 Dec 2024 734th rxl3 541 61 29ms 15 Mar 2018 734th wrauner 541 61 11ms 6 Aug 2019 734th PeriBooty 541 61 26ms 26 Nov 2019 734th tekaireb 541 61 21ms 24 Jul 2021 734th mackereldev 541 61 10ms 27 Apr 2022 734th Smetalo 541 61 10ms 24 Aug 2022 734th DCerane 541 61 28ms 14 Oct 2022 734th mobibluman 541 61 9ms 23 Oct 2023 742nd N3phi1im 532 62 10ms 22 Nov 2018 742nd janga1 532 62 10ms 19 Aug 2021 742nd charlieharutaka 532 62 9ms 28 Sep 2021 742nd Gpopcorn 532 62 10ms 29 Mar 2022 742nd programmeruser2 532 62 9ms 3 Mar 2023 742nd ANovelForStudy 532 62 10ms 9 Jun 2023 742nd deniz-blue 532 62 12ms 19 Oct 2023 742nd TotoAJ 532 62 10ms 12 Dec 2023 750th ahmedzafar89 524 63 11ms 13 Sep 2018 750th McErer 524 63 10ms 11 Jan 2019 750th blucky36 524 63 27ms 27 Feb 2019 750th Jdender 524 63 38ms 21 Aug 2019 750th DaCoolOne 524 63 10ms 24 Nov 2019 750th grenierdev 524 63 9ms 3 Dec 2019 750th saschakaupp 524 63 11ms 5 Dec 2019 750th Randomness74 524 63 11ms 14 Mar 2020 750th heigertd 524 63 11ms 26 May 2020 750th Fulkman 524 63 10ms 19 Sep 2020 750th Fanrco 524 63 10ms 31 Aug 2023 750th null-tangent 524 63 29ms 3 Apr 2025 762nd DmyBor 516 64 10ms 4 May 2018 762nd ollybrabs 516 64 21ms 22 Aug 2018 762nd Kingohearts 516 64 9ms 22 Sep 2018 762nd sammylou852 516 64 11ms 30 Nov 2018 762nd jonot-cyber 516 64 11ms 16 Jun 2019 762nd Pablo-No 516 64 12ms 15 Jul 2020 762nd richard-oelze 🇩🇪 516 64 10ms 6 Nov 2020 762nd WilliamKeating 516 64 11ms 14 Jan 2022 762nd OfficialCB 516 64 10ms 11 Dec 2023 762nd Mikey-Beep 🇬🇧 516 64 11ms 25 Dec 2024 772nd varbrad 508 65 10ms 5 Dec 2017 772nd masashimachida 508 65 9ms 27 Jul 2020 772nd kozgera 508 65 10ms 9 Apr 2021 772nd kellyGipson 508 65 10ms 2 Jun 2021 772nd Ivraj 508 65 26ms 11 Dec 2022 772nd osNiko 🇧🇷 508 65 10ms 25 days ago 778th Draegert 500 66 20ms 4 Jun 2019 778th con-cs 500 66 10ms 26 Oct 2021 778th RegularSalamander 500 66 38ms 29 Jan 2022 778th Zylar-xD 500 66 11ms 1 Apr 2022 778th Lxkasmehl 500 66 9ms 17 Jul 2025 783rd labster 493 67 19ms 5 Mar 2018 783rd aberthier 493 67 28ms 6 Mar 2018 783rd GustavSt 493 67 12ms 4 Mar 2020 783rd mattduag 493 67 9ms 20 Dec 2022 783rd henrygagnier 493 67 10ms 19 Nov 2024 788th ChuaJ 485 68 10ms 25 Apr 2019 788th EfiGordon 485 68 11ms 24 Jul 2020 788th aphrim 🇺🇸 485 68 10ms 30 Oct 2021 788th pfysches-boop 485 68 10ms 6 Aug 2023 792nd cooldreamer 478 69 9ms 20 Aug 2019 792nd gabsumm 478 69 10ms 12 Jan 2022 794th everchanger 471 70 11ms 6 Jun 2020 794th tik25 471 70 9ms 28 Mar 2024 796th abishek28007 465 71 14ms 7 Sep 2020 796th k4rli 465 71 10ms 20 Jan 2021 796th jessegyger 465 71 10ms 7 Nov 2022 796th Pyro569 465 71 10ms 30 Jul 2023 796th apokryfos 465 71 26ms 18 Aug 2023 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