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Write the shortest code you can that produces an infinite output.

That's all. You code will only be disqualified if it stops producing output at some point. As always in code golf, the shortest code wins.

Here's a list of answers that I think are really clever, so they can get credit:

Leaderboard

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body{text-align:left!important}#answer-list,#language-list{padding:10px;width:290px;float:left}table thead{font-weight:700}table td{padding:5px}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <link rel="stylesheet" type="text/css" href="//cdn.sstatic.net/codegolf/all.css?v=83c949450c8b"> <div id="answer-list"> <h2>Leaderboard</h2> <table class="answer-list"> <thead> <tr><td></td><td>Author</td><td>Language</td><td>Size</td></tr></thead> <tbody id="answers"> </tbody> </table> </div><div id="language-list"> <h2>Winners by Language</h2> <table class="language-list"> <thead> <tr><td>Language</td><td>User</td><td>Score</td></tr></thead> <tbody id="languages"> </tbody> </table> </div><table style="display: none"> <tbody id="answer-template"> <tr><td>{{PLACE}}</td><td>{{NAME}}</td><td>{{LANGUAGE}}</td><td>{{SIZE}}</td><td><a href="{{LINK}}">Link</a></td></tr></tbody> </table> <table style="display: none"> <tbody id="language-template"> <tr><td>{{LANGUAGE}}</td><td>{{NAME}}</td><td>{{SIZE}}</td><td><a href="{{LINK}}">Link</a></td></tr></tbody> </table>

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  • 122
    \$\begingroup\$ All answers disqualified because at some point the Earth will be swallowed by the sun, and at some point the universe will die :P \$\endgroup\$ – Doorknob Nov 9 '13 at 20:00
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    \$\begingroup\$ Does "infinite until your computer crashes" count? <_< \$\endgroup\$ – Izkata Nov 10 '13 at 1:39
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    \$\begingroup\$ If I write mine in Piet, can I count the pixels of the text the other programs used? I believe the smallest possible repeating Piet program would be 6 pixels. That beats Befunge if "off" pixels still count. \$\endgroup\$ – DampeS8N Nov 12 '13 at 20:27
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    \$\begingroup\$ @Izkata So any answer that crashes your computer is also allowed :D \$\endgroup\$ – ɐɔıʇǝɥʇuʎs Jul 11 '14 at 20:11
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    \$\begingroup\$ @Doorknob So really, the challenge is to produce infinite output in a finite amount of time. Sounds easy enough. \$\endgroup\$ – Sanchises Apr 10 '15 at 21:15

275 Answers 275

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Lua, 18 bytes

::a::print()goto a

Try it online!

Shortest I was able to came up with (beats any loop). Prints newlines forever.

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0
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MarioLANG, 7 bytes

>:<
===

Try it online!

Infinitely prints zeroes; not much else to say about it.

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Element, 5 bytes

!{A`]

This outputs A to the console forever.

TIO

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0
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T-SQL, 15 bytes

a:PRINT 0GOTO a

6 years and 10 pages of answers, and no SQL versions yet.

Notes:

  • PRINT is 1 byte less than a SELECT.
  • A label with a goto is 1 byte shorter than the shortest WHILE statement: WHILE 1=1PRINT 1 (you can't just do WHILE 1 in SQL)
  • Depending on the version of SQL Management Studio, the "messages" pane (which displays the result of PRINT statements), might not immediately refresh; this is a client-side UI issue only.
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C# (72)

using System; class P {static void Main(){for(;;) Console.Write('-');}}

Output enter image description here

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  • 7
    \$\begingroup\$ This can easily be shortened to: class P{static void Main(){for(;;System.Console.Write(1));}} (60); if you insist on - to be outputted it would be 62 (replacing 1 with "1"). \$\endgroup\$ – RobIII May 2 '14 at 12:31
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    \$\begingroup\$ I have no idea how to code in C# but I can still golf this" class P{static void main{for(;;) Console.Write(0);}} \$\endgroup\$ – MilkyWay90 Feb 13 '19 at 1:52
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