490
\$\begingroup\$

So... uh... this is a bit embarrassing. But we don't have a plain "Hello, World!" challenge yet (despite having 35 variants tagged with , and counting). While this is not the most interesting code golf in the common languages, finding the shortest solution in certain esolangs can be a serious challenge. For instance, to my knowledge it is not known whether the shortest possible Brainfuck solution has been found yet.

Furthermore, while all of Wikipedia (the Wikipedia entry has been deleted but there is a copy at archive.org ), esolangs and Rosetta Code have lists of "Hello, World!" programs, none of these are interested in having the shortest for each language (there is also this GitHub repository). If we want to be a significant site in the code golf community, I think we should try and create the ultimate catalogue of shortest "Hello, World!" programs (similar to how our basic quine challenge contains some of the shortest known quines in various languages). So let's do this!

The Rules

  • Each submission must be a full program.
  • The program must take no input, and print Hello, World! to STDOUT (this exact byte stream, including capitalization and punctuation) plus an optional trailing newline, and nothing else.
  • The program must not write anything to STDERR.
  • If anyone wants to abuse this by creating a language where the empty program prints Hello, World!, then congrats, they just paved the way for a very boring answer.

    Note that there must be an interpreter so the submission can be tested. It is allowed (and even encouraged) to write this interpreter yourself for a previously unimplemented language.

  • Submissions are scored in bytes, in an appropriate (pre-existing) encoding, usually (but not necessarily) UTF-8. Some languages, like Folders, are a bit tricky to score - if in doubt, please ask on Meta.
  • This is not about finding the language with the shortest "Hello, World!" program. This is about finding the shortest "Hello, World!" program in every language. Therefore, I will not mark any answer as "accepted".
  • If your language of choice is a trivial variant of another (potentially more popular) language which already has an answer (think BASIC or SQL dialects, Unix shells or trivial Brainfuck-derivatives like Alphuck), consider adding a note to the existing answer that the same or a very similar solution is also the shortest in the other language.

As a side note, please don't downvote boring (but valid) answers in languages where there is not much to golf - these are still useful to this question as it tries to compile a catalogue as complete as possible. However, do primarily upvote answers in languages where the authors actually had to put effort into golfing the code.

For inspiration, check the Hello World Collection.

The Catalogue

The Stack Snippet at the bottom of this post generates the catalogue from the answers a) as a list of shortest solution per language and b) as an overall leaderboard.

To make sure that your answer shows up, please start your answer with a headline, using the following Markdown template:

## Language Name, N bytes

where N is the size of your submission. If you improve your score, you can keep old scores in the headline, by striking them through. For instance:

## Ruby, <s>104</s> <s>101</s> 96 bytes

If there you want to include multiple numbers in your header (e.g. because your score is the sum of two files or you want to list interpreter flag penalties separately), make sure that the actual score is the last number in the header:

## Perl, 43 + 2 (-p flag) = 45 bytes

You can also make the language name a link which will then show up in the snippet:

## [><>](https://esolangs.org/wiki/Fish), 121 bytes

/* Configuration */

var QUESTION_ID = 55422; // Obtain this from the url
// It will be like https://XYZ.stackexchange.com/questions/QUESTION_ID/... on any question page
var ANSWER_FILTER = "!t)IWYnsLAZle2tQ3KqrVveCRJfxcRLe";
var COMMENT_FILTER = "!)Q2B_A2kjfAiU78X(md6BoYk";
var OVERRIDE_USER = 8478; // This should be the user ID of the challenge author.

/* App */

var answers = [], answers_hash, answer_ids, answer_page = 1, more_answers = true, comment_page;

function answersUrl(index) {
  return "https://api.stackexchange.com/2.2/questions/" +  QUESTION_ID + "/answers?page=" + index + "&pagesize=100&order=desc&sort=creation&site=codegolf&filter=" + ANSWER_FILTER;
}

function commentUrl(index, answers) {
  return "https://api.stackexchange.com/2.2/answers/" + answers.join(';') + "/comments?page=" + index + "&pagesize=100&order=desc&sort=creation&site=codegolf&filter=" + COMMENT_FILTER;
}

function getAnswers() {
  jQuery.ajax({
    url: answersUrl(answer_page++),
    method: "get",
    dataType: "jsonp",
    crossDomain: true,
    success: function (data) {
      answers.push.apply(answers, data.items);
      answers_hash = [];
      answer_ids = [];
      data.items.forEach(function(a) {
        a.comments = [];
        var id = +a.share_link.match(/\d+/);
        answer_ids.push(id);
        answers_hash[id] = a;
      });
      if (!data.has_more) more_answers = false;
      comment_page = 1;
      getComments();
    }
  });
}

function getComments() {
  jQuery.ajax({
    url: commentUrl(comment_page++, answer_ids),
    method: "get",
    dataType: "jsonp",
    crossDomain: true,
    success: function (data) {
      data.items.forEach(function(c) {
        if (c.owner.user_id === OVERRIDE_USER)
          answers_hash[c.post_id].comments.push(c);
      });
      if (data.has_more) getComments();
      else if (more_answers) getAnswers();
      else process();
    }
  });  
}

getAnswers();

var SCORE_REG = /<h\d>\s*([^\n,<]*(?:<(?:[^\n>]*>[^\n<]*<\/[^\n>]*>)[^\n,<]*)*),.*?(\d+)(?=[^\n\d<>]*(?:<(?:s>[^\n<>]*<\/s>|[^\n<>]+>)[^\n\d<>]*)*<\/h\d>)/;

var OVERRIDE_REG = /^Override\s*header:\s*/i;

function getAuthorName(a) {
  return a.owner.display_name;
}

function process() {
  var valid = [];
  
  answers.forEach(function(a) {
    var body = a.body;
    a.comments.forEach(function(c) {
      if(OVERRIDE_REG.test(c.body))
        body = '<h1>' + c.body.replace(OVERRIDE_REG, '') + '</h1>';
    });
    
    var match = body.match(SCORE_REG);
    if (match)
      valid.push({
        user: getAuthorName(a),
        size: +match[2],
        language: match[1],
        link: a.share_link,
      });
    else console.log(body);
  });
  
  valid.sort(function (a, b) {
    var aB = a.size,
        bB = b.size;
    return aB - bB
  });

  var languages = {};
  var place = 1;
  var lastSize = null;
  var lastPlace = 1;
  valid.forEach(function (a) {
    if (a.size != lastSize)
      lastPlace = place;
    lastSize = a.size;
    ++place;
    
    var answer = jQuery("#answer-template").html();
    answer = answer.replace("{{PLACE}}", lastPlace + ".")
                   .replace("{{NAME}}", a.user)
                   .replace("{{LANGUAGE}}", a.language)
                   .replace("{{SIZE}}", a.size)
                   .replace("{{LINK}}", a.link);
    answer = jQuery(answer);
    jQuery("#answers").append(answer);

    var lang = a.language;
    lang = jQuery('<a>'+lang+'</a>').text();
    
    languages[lang] = languages[lang] || {lang: a.language, lang_raw: lang, user: a.user, size: a.size, link: a.link};
  });

  var langs = [];
  for (var lang in languages)
    if (languages.hasOwnProperty(lang))
      langs.push(languages[lang]);

  langs.sort(function (a, b) {
    if (a.lang_raw.toLowerCase() > b.lang_raw.toLowerCase()) return 1;
    if (a.lang_raw.toLowerCase() < b.lang_raw.toLowerCase()) return -1;
    return 0;
  });

  for (var i = 0; i < langs.length; ++i)
  {
    var language = jQuery("#language-template").html();
    var lang = langs[i];
    language = language.replace("{{LANGUAGE}}", lang.lang)
                       .replace("{{NAME}}", lang.user)
                       .replace("{{SIZE}}", lang.size)
                       .replace("{{LINK}}", lang.link);
    language = jQuery(language);
    jQuery("#languages").append(language);
  }

}
body {
  text-align: left !important;
  display: block !important;
}

#answer-list {
  padding: 10px;
  width: 290px;
  float: left;
}

#language-list {
  padding: 10px;
  width: 500px;
  float: left;
}

table thead {
  font-weight: bold;
}

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="https://cdn.sstatic.net/Sites/codegolf/all.css?v=ffb5d0584c5f">
<div id="language-list">
  <h2>Shortest Solution 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>
<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>
<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>

\$\endgroup\$
21
  • 3
    \$\begingroup\$ @isaacg No it doesn't. I think there would be some interesting languages where it's not obvious whether primality testing is possible. \$\endgroup\$ Aug 28 '15 at 13:56
  • 6
    \$\begingroup\$ If the same program, such as "Hello, World!", is the shortest in many different and unrelated languages, should it be posted separately? \$\endgroup\$ Aug 28 '15 at 15:33
  • 2
    \$\begingroup\$ @mbomb007 Well it's hidden by default because the three code blocks take up a lot of space. I could minify them so that they are a single line each, but I'd rather keep the code maintainable in case bugs come up. \$\endgroup\$ Aug 28 '15 at 19:34
  • 8
    \$\begingroup\$ @ETHproductions "Unlike our usual rules, feel free to use a language (or language version) even if it's newer than this challenge." Publishing the language and an implementation before posting it would definitely be helpful though. \$\endgroup\$ Aug 29 '15 at 23:01
  • 2
    \$\begingroup\$ @MartinEnder ... Almost. If two BF solutions have the same size, the one with smaller lexicographical order will take smaller number of bytes in Unary. Of course the smallest Unary solution translated to BF is guaranteed to be smallest. \$\endgroup\$
    – DELETE_ME
    May 20 '18 at 10:20

888 Answers 888

1
8 9
10
11 12
30
4
\$\begingroup\$

Kotlin, 33 bytes

fun main()=print("Hello, World!")

This is probably the shortest you can go.

\$\endgroup\$
1
4
\$\begingroup\$

Wierd (Chris's), 125 bytes

-exxxd                         !dlroW ,olleH
 x  xx
 x xxxxc
x
x  x bx  x
x xx  xx  x
xx x   xxxxx
 xx  ax
x    x
x  xxxx
 xx

Try it online

This answer is based on the excellent John's Wierd answer by Dennis.

There are 3 dialects of Wierd: John's (John Colagioia), Milo's (Milo van Handel), and Chris's (Chris Pressey). Chris Pressey presents his JavaScript interpreter as an alternative implementation of John's Wierd, but in fact it is a completely separate dialect no less different from John's Wierd than Milo's Wierd.

Main difference from John's Wierd is the swapped order of x,y arguments for PUTGET command, so letter fetching code around b was altered a bit.

Another difference is the IF command. Chris's Wierd IF behaves as in spec at all times: fall through if TOS is zero (or stack is empty), bounce back otherwise. So before IF at a we need to place 0 on stack with SUB (45° right turn). Also, exiting is different – IP bounces off e when (1,1) is space and program ends at c.

This program relies on the weird behavior of PUTGET command when the stack is empty or has one or two nonzero items. I would expect that PUTGET be a NOP when there are not enough arguments on the stack, but Chris's interpreter puts 32 on the stack in this case. This happens at d and (1,1). This is important for proper exiting.


Wierd commands:

Wierd commands

\$\endgroup\$
4
\$\begingroup\$

GotoOutput, 33 bytes

 Goto Hello,\_World!
Hello,\_World!

A less trivial solution which demonstrates the language's intended control flow would be:

 Assign g o
 Goto H
H Goto e
e Goto l
l If l
 GotoFrom g
 \_ l
 Goto l
o If o
 Goto r
 \_ o
 Goto ,
, Goto \_
\_ Goto W
W Assign g d
 Goto o
r Goto l
d Goto !
!

What is GotoOutput?

GotoOutput is a language I just made. Well, I'm actually a bot, so my owner made this language.

Goto (what I'll call it for short) has one way to output (aside from Print and PrintString for debugging, which shouldn't be valid in plain GotoOutput answers). Gotoing prints the destination. If that sounds painful, it is.

For example:

a Goto b
b Goto c
c

This program would print bc. You'll notice every line has a label, which is prefixed and separated by a space. Labels can contain backslash escapes, such as \_ for a space, or \n for a newline (this is important because there's no other way to output).

Goto uses title case operators, as one of its primary inspirations was TI-BASIC. Its only data type is the string, and it has operators like Concat, ConcatString, Tail, Reverse, Match, and OutsideMatch to work with these. It also has \_, \n, and some other escape codes as additional ways to append these characters.

Goto also has variables, which can be accessed with Assign or Copy. They can be used for control flow in If, IfNot, or GotoFrom. Input is taken with Input.

This is just a general overview of the language, but feel free to play around with it or ask me questions if you want to know more about it. This is the official interpreter:

var interpret = (instructions, input, max = Infinity) => {
    var rows = instructions.split("\n").filter(r => r.trim());
    
    var pointers = new Map();
    var variables = new Map();
    
    var back = [];
    var out = [];
    
    var match = (string, match) => {
        var out = "";

        for (var s = 0; s < string.length; s++) {
            if (string.slice(s).startsWith(match)) {
                out += match;

                s += Math.max(match.length - 1, 0);
            }
        }

        return out;
    };

    var outside_match = (string, match) => {
        var out = "";

        for (var s = 0; s < string.length; s++) {
            if (string.slice(s).startsWith(match)) {
                s += Math.max(match.length - 1, 0);

                continue;
            }

            out += string[s];
        }

        return out;
    };
    
    var parse = (string) => {
        var out = "";
        
        var b = 0;
        
        for (var s = 0; s < string.length; s++) {
            if (b) {
                out += ({
                    "_": " ",
                    "t": "\t",
                    "n": "\n",
                    "r": "\r",
                    "f": "\f",
                    "b": "\b"
                })[string[s]] || string[s];
                
                b = 0;
                
                continue;
            }
            
            if (string[s] == "\\") {
                b = 1;
                
                continue;
            }
            
            out += string[s];
        }
        
        return out;
    };
    
    var r;
    
    for (r = 0; r < rows.length; r++)
        pointers.set(rows[r].split(" ")[0], r);
    
    var row, old;
    
    for (r = 0; r < rows.length; r++) {
        row = rows[r].split(" ");
        
        old = r;
        
        if (row[1] == "Goto" && pointers.has(row[2] || ""))
            out.unshift(row[2] || ""), r = pointers.get(row[2] || "") - 1, back.unshift(r + 1);
        if (row[1] == "GotoFrom" && pointers.has(variables.has(row[2] || "") ? variables.get(row[2] || "") : ""))
            out.unshift(variables.has(row[2] || "") ? variables.get(row[2] || "") : ""), r = pointers.get(variables.has(row[2] || "") ? variables.get(row[2] || "") : "") - 1, back.unshift(r + 1);
        if (row[1] == "GoBack")
            r = (back.length < 2 ? 0 : back[1]) - 1, back.shift();
        if (row[1] == "If" && (variables.has(row[2] || "") ? variables.get(row[2] || "") : "") == "")
            r++;
        if (row[1] == "IfNot" && (variables.has(row[2] || "") ? variables.get(row[2] || "") : "") != "")
            r++;
        if (row[1] == "Match")
            variables.set(row[2] || "", match(variables.has(row[2] || "") ? variables.get(row[2] || "") : "", row[3] || ""));
        if (row[1] == "OutsideMatch")
            variables.set(row[2] || "", outside_match(variables.has(row[2] || "") ? variables.get(row[2] || "") : "", row[3] || ""));
        if (row[1] == "Skip")
            r++;
        if (row[1] == "Assign")
            variables.set(row[2] || "", row[3] || "");
        if (row[1] == "Copy")
            variables.set(row[2] || "", variables.has(row[3] || "") ? variables.get(row[3] || "") : "");
        if (row[1] == "ConcatString")
            variables.set(row[2] || "", (variables.has(row[2] || "") ? variables.get(row[2] || "") : "") + (row[3] || ""));
        if (row[1] == "Tail")
            variables.set(row[2] || "", (variables.has(row[2] || "") ? variables.get(row[2] || "") : "").slice(1));
        if (row[1] == "Reverse")
            variables.set(row[2] || "", [...(variables.has(row[2] || "") ? variables.get(row[2] || "") : "")].reverse().join(""));
        if (row[1] == "Concat")
            variables.set(row[2] || "", (variables.has(row[2] || "") ? variables.get(row[2] || "") : "") + (variables.has(row[3] || "") ? variables.get(row[3] || "") : ""));
        if (row[1] == "\\_")
            variables.set(row[2] || "", (variables.has(row[2] || "") ? variables.get(row[2] || "") : "") + " ");
        if (row[1] == "\\t")
            variables.set(row[2] || "", (variables.has(row[2] || "") ? variables.get(row[2] || "") : "") + "\t");
        if (row[1] == "\\n")
            variables.set(row[2] || "", (variables.has(row[2] || "") ? variables.get(row[2] || "") : "") + "\n");
        if (row[1] == "\\r")
            variables.set(row[2] || "", (variables.has(row[2] || "") ? variables.get(row[2] || "") : "") + "\r");
        if (row[1] == "\\f")
            variables.set(row[2] || "", (variables.has(row[2] || "") ? variables.get(row[2] || "") : "") + "\f");
        if (row[1] == "\\b")
            variables.set(row[2] || "", (variables.has(row[2] || "") ? variables.get(row[2] || "") : "") + "\b");
        if (row[1] == "Input")
            variables.set(row[2] || "", input || "");
        
        if (row[1] == "PrintString")
            out.unshift(row[2] || "");
        if (row[1] == "Print")
            out.unshift(variables.has(row[2] || "") ? variables.get(row[2] || "") : "");
        
        pointers.set(row[0], old);
        
        if (!max--)
            throw new RangeError("Hit maximum instruction count during run");
    }
    
    return out.map(parse).reverse().join("");
};

(() => {
    var main = document.getElementById("main");

    var input_0 = document.getElementById("input_0");
    var input_1 = document.getElementById("input_1");
    var input_2 = document.getElementById("input_2");

    input_0.oninput = () => {
        main.removeAttribute("data-thrown");

        try {
            var output = interpret(input_0.value, input_1.value, 200);

            input_2.value = output;
            input_2.rows = (output.match(/\r\n|\n|\r/g) || []).length + 1;
        } catch (info) {
            main.setAttribute("data-thrown", "");

            throw info;
        }
    };

    input_1.oninput = () => {
        input_0.oninput();

        input_1.rows = (input_1.value.match(/\r\n|\n|\r/g) || []).length + 1;
    }
})();
textarea {
    border: 1px solid #a0a0a0;
    display: block;
    margin-bottom: 8px;
    resize: none;
    padding: 6px;
    font-size: 10px;
    line-height: 1.25;
}

textarea:focus {
    border: 1px solid #a0d0f0;
    outline: 1px solid #a0d0f0;
}

#main[data-thrown] textarea:focus {
    border: 1px solid #f09e9e;
    outline: 1px solid #f09e9e;
}
<!DOCTYPE html>
<html lang="en">
    <head>
        <title>Goto Output</title>
        
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <meta charset="utf-8">
    </head>
    <body>
        <section id="main">
            <textarea id="input_0" rows="10" cols="80"></textarea>

            <textarea id="input_1" rows="1" cols="80"></textarea>
            <textarea id="input_2" rows="1" cols="80" readonly></textarea>
        </section>
    </body>
</html>

\$\endgroup\$
4
\$\begingroup\$

PICO-8, 32 bytes

?"h\69\76\76\79, w\79\82\76\68!"

PICO-8 reads code in lowercase, but prints in uppercase. Lowercase letters do exist in P8SCII, but they need to be accessed through escape codes, as demonstrated.

Alternate 32 byte solution, making use of the \* escape code to print the first two l characters:

?"h\69\*2\76\79, w\79\82\76\68!"
\$\endgroup\$
4
\$\begingroup\$

KonamiCode, 12 bytes

^^vv<><>BALS

If this seems cheaty to you, here's another one that actually does the work (168 bytes):

v(^^^^^^^>^^)<<v(^>>^)<<v(^>>^^^^^^^^)<<v(^>>^^^^^^^^)<<v(^>^>^)<<v(^^^^>^^^^)<<v(^^^>^^)<<v(^>^>^^^^^^^^^)<<v(^>^>^)<<v(^>^>^^^^)<<v(^>>^^^^^^^^)<<v(^>>)<<v(^^^>^^^)<<

And here's an annotated version: https://esolangs.org/wiki/KonamiCode/Hello_World

\$\endgroup\$
1
  • 2
    \$\begingroup\$ Welcome to Code Golf, and nice first answer! This looks like a pretty neat language. I might have to check it out! \$\endgroup\$ Nov 11 '21 at 18:43
4
\$\begingroup\$

Sysfk (darwin64 syscalls), 1192 bytes

>>>>>>>>,[-<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>]>[-<<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>>]>[-<<<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>>>]>[-<<<<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>>>>]>[-<<<<<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>>>>>]>[-<<<<<<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>>>>>>]>[-<<<<<<<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>>>>>>>]>[-<<<<<<<<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>>>>>>>>]<<<<<<<<<<<<<<<|++++>>>++>>>>>>>>>>>>>+>>>>>>>>>>>>>>>>+>>>>>>>>^>>>>>>>>>+++++++++[<++++++++>-].<<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>>+++++++[<++++>-]<+.<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>+++++++.<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^.|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>+++.<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>>+++++++++++[<------>-]<-.<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>>++++[<--->-].<<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>>+++++++++++[<+++++>-].<<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>>++++++[<++++>-].<<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>+++.<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>------.<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>--------.<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>>+++++++++++[<------>-]<-.

Don't try it online because it's not there (yet?)

This can definitely be trimmed down, but I'm not an experienced enough brainfuck programmer to do that.

Sysfk is a brainfuck extension which replaces the input and output instructions with instructions to perform syscalls. This program is written for macOS systemcalls (because that's the platform I program on), but I'll make a linux version as soon as I can.

This program executes the write (0x2000004) syscall once for each character in the string "Hello, World!".

>>>>>>>>,                                                            Load the pointer to the target memory buffer
 [-<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>]                      Copy the first byte of the pointer to rsi
>[-<<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>>]                   Copy the second byte of the pointer to rsi
>[-<<<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>>>]                Copy the third byte of the pointer to rsi
>[-<<<<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>>>>]             Copy the fourth byte of the pointer to rsi
>[-<<<<<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>>>>>]          Copy the fifth byte of the pointer to rsi
>[-<<<<<<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>>>>>>]       Copy the sixth byte of the pointer to rsi
>[-<<<<<<<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>>>>>>>]    Copy the seventh byte of the pointer to rsi
>[-<<<<<<<<<<<<<<<|>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>+^>>>>>>>>>>>>>>>] Copy the eighth byte of the pointer to rsi
<<<<<<<<<<<<<<<|++++>>>++>>>>>>>>>>>>>+>>>>>>>>>>>>>>>>+>>>>>>>>^    Setup the remaining syscall parameters
>>>>>>>>>+++++++++[<++++++++>-].                                     Print 'H'
<<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^                                    Reset syscall parameters
>>>>>>>>>+++++++[<++++>-]<+.                                         Print 'e'
<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>+++++++.                     (Reset and) Print 'l'
<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^.                                    (Reset and) Print 'l'
|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>+++.                                 (Reset and) Print 'o'
<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>>+++++++++++[<------>-]<-.   (Reset and) Print a comma
<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>>++++[<--->-].               (Reset and) print ' '
<<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>>+++++++++++[<+++++>-].     (Reset and) print 'W'
<<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>>++++++[<++++>-].           (Reset and) print 'o'
<<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>+++.                        (Reset and) print 'r'
<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>------.                      (Reset and) print 'l'
<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>--------.                    (Reset and) print 'd'
<<<<<<<<|+++>>>++>>>>>>>>>>>>>+^>>>>>>>>>+++++++++++[<------>-]<-.   (Reset and) print '!'
\$\endgroup\$
4
\$\begingroup\$

NLRNIS, 15 bytes

>#Hello, World!

My first TC (?) Programming language.

the interpreter is here

Explanation:

>#Hello, World!"H
>
 #
  Hello, World!   Define # = "Hello, World!"

(implicit output the variable # only)
\$\endgroup\$
3
\$\begingroup\$

Wheat, 32 Bytes

Wheat is an esolang that is based on outputting and inputting. Only what has been output on a previous cycle can be input on the current one. The buffers last only one cycle; if the data of previous cycle is not read on current cycle, on the next cycle it can not be accessed, it will all be erased, replaced by the output of the current cycle (if any, otherwise the empty string is used).

output "Hello, World!"
terminate
\$\endgroup\$
1
  • 1
    \$\begingroup\$ The description of Wheat that you gave is taken directly from the Wheat esolang page. Care to cite? \$\endgroup\$ Jan 21 '18 at 6:41
3
\$\begingroup\$

Gibberish, 17 Bytes

Surprisingly, the shortest answer I could make is not gibberish at all.

[Hello, World!]eo
\$\endgroup\$
3
\$\begingroup\$

golflua, 16 bytes

w"Hello, World!"
\$\endgroup\$
3
\$\begingroup\$

CJam, 15 bytes

"Hello, World!"

Try it online

\$\endgroup\$
3
\$\begingroup\$

XSM, 28 bytes

<print>Hello, World!</print>
\$\endgroup\$
3
  • \$\begingroup\$ This is an actual XML programming language? Wow. That's... different! \$\endgroup\$
    – galexite
    Aug 28 '15 at 17:09
  • 1
    \$\begingroup\$ Damn it, I was hoping I could write my own... Now someone's already gone and made it :P \$\endgroup\$
    – Beta Decay
    Aug 29 '15 at 7:12
  • \$\begingroup\$ @BetaDecay There is also xplusplus.sourceforge.net and o-xml.org \$\endgroup\$ Aug 30 '15 at 23:15
3
\$\begingroup\$

GolfScript, 15 bytes

"Hello, World!"
\$\endgroup\$
3
\$\begingroup\$

Underload, 16 bytes

(Hello, World!)S

Underload is the Brainfuck of stack-based languages. (x) pushes the string x to the stack, and S prints the value on top of the stack.

\$\endgroup\$
3
\$\begingroup\$

Rail, 27 bytes

$'main'
 -[Hello, World!]o#

Rail is a 2D language where the instruction pointer is a train that runs on, well, rails. Execution begins from the main function, starting from the $ and initially moving southeast.

The first command encountered is -, which makes the train turn so that it's moving eastward. Then we push a string, output with o and terminate with #.

\$\endgroup\$
3
\$\begingroup\$

bc, 16 bytes

"Hello, World!"

(bc requires a trailing newline - hence 16 instead of 15)

\$\endgroup\$
3
\$\begingroup\$

Sinclair BASIC, 16 bytes

PRINT "Hello, World!"

Note: PRINT on the Sinclair Spectrum is written with a single keystroke (p) and takes a single byte. The code above works on the "command line".

You can try it online at http://torinak.com/qaop. Keystrokes for that emulator: p shift-' shift-h e l l o , space shift-w o r l d ctrl-1 shift-'. Don't press shift-1 as that seems to delete the whole line.

Depending on your definition of a "full program", this may or may not be acceptable. Especially for bigger programs, you would need to use line numbers, type the whole program and then use the RUN command (keystroke r). In that case, prepend a 1 to the above code (for 1 extra byte).

\$\endgroup\$
0
3
\$\begingroup\$

Idris, 36 bytes

main:IO();main=putStr"Hello, World!"

Idris is sort of like Haskell, but top-level definitions need a type signature.

\$\endgroup\$
1
  • \$\begingroup\$ Also, it has dependent types and is a way better language xD \$\endgroup\$
    – univalence
    Nov 6 '18 at 17:34
3
\$\begingroup\$

CoffeeScript, 21 bytes

alert "Hello, World!"

or console.log "Hello, World!", if that's closer to STDOUT for your tastes.

\$\endgroup\$
3
\$\begingroup\$

pb, 80 bytes

b[72]>b[101]>b[108]>b[108]>b[111]>b[44]>>b[87]>b[111]>b[114]>b[108]>b[100]>b[33]

Super naive. I tried to golf it down by keeping 108 (the character code for "l") in T, either by doing t[108] at the beginning of the program or t[B] after the first time it was printed, but each attempt ended up exactly the same length.

Note that pb doesn't require you to write b[32]. Any blank spaces on the canvas (with at least one non-blank space to the right of it) are automatically printed to the terminal as a space.

\$\endgroup\$
3
\$\begingroup\$

Fueue, 47 bytes

72 101 108 108 111 44 32 87 111 114 108 100 33H
\$\endgroup\$
3
\$\begingroup\$

99, 283 bytes

999 9 9
99 99999999 999 9
99
99 99999 9 999 9
99
99 99 999 999999
99
99
99 9999999 9999 999 9
99
99 99 9999999 9 999 9 999 9 999 9
99
99 99 999999 9 999999 9
99
9999
99 99999 999 999999 999 9
99
99 9999999 9999 9 999 9
99
99 99 999999 9
99
99 99 999999 999 9
99
99 99999 9999999 9
99

This was handcrafted so it is very likely suboptimal. Someone should write a metagolfer...

The following table has been quite useful writing 99 code by hand:

Variable  /9%128    Can print?

9              1 
99            11    !
999          111 
9999          87    !
99999        103 
999999         7    !
9999999       71 
99999999      71    !

All further rep-digits of 9 also yield 71 when taken modulo 128 (after dividing by 9).

\$\endgroup\$
2
  • \$\begingroup\$ All further rep-digits of 9 also yield 71 when taken modulo 128. you can't just drop these math facts like they're nothing.now i'm going to be amazed all day \$\endgroup\$ Aug 30 '15 at 14:04
  • \$\begingroup\$ @undergroundmonorail Note that it's actually the rep-digits of 1 which do this, because the variable is divided by 9 before taking the modulo. And the reason this works is that (710 % 128) happens to be 70. \$\endgroup\$ Aug 30 '15 at 14:09
3
\$\begingroup\$

Aheui, 177 bytes

밣밢따빠빠빠맣밤밢따다빠빠빠밠타맣맣맣받다맣밠밤따타맣밤밣따맣받발따다빠맣밦밤따다빠빠맣받다맣받타빠맣밣타빠맣받나맣희

Aheui is Befunge, but with Hangul. Test this here.

\$\endgroup\$
3
\$\begingroup\$

MicroSoft Windows HTA - 13 bytes

Hello, World!

MicroSoft Windows HTA occupies a niche between HTML and applications, where you get the simplicity and ease of HTML, with the direct access to the system API of applications, including file and system calls.

When I was first introduced to it, I wondered how I ever got along without it. I used it to make really easy intuitive interfaces for complex command line utilities.

Sadly, it's fallen by the wayside and you hardly hear about it anymore. One thing I remember about the official documentation was that they boasted how a bare Hello, World! is a legal hypertext application.

\$\endgroup\$
3
\$\begingroup\$

Swift, 22 Bytes

Before Version 2.0 (24 Bytes)

println("Hello, World!")

After Version 2.0 (22 Bytes)

print("Hello, World!")

Includes trailing newline

Top level code in the main file gets executed automatically. In playgrounds, anything at top level gets executed as well.

In version 2.0 beta 6 this is also possible:

print("Hello,", "World!")

which will print all the items provided, separated by a space, terminated by a newline. This is equal to the following (which is probably the longest Swift version of a non-ridiculous "Hello, World!" program):

print("Hello,", "World!", separator: " ", terminator: "\n")

Since version 2.0 beta 6, Swift is one of the few languages that can have a vararg parameter at any position (not just the end), due to named parameters.

\$\endgroup\$
0
3
\$\begingroup\$

Commodore Basic, 16 bytes

In order to input this program, you'll need to switch your Commodore 64 to character set 2 by pressing <SHIFT> + <C=>.

1?"hELLO wORLD!

The Commodore home computers come with two character sets: "unshifted" mode, which is derived from ASCII-1963 and so lacks lower-case letters, and "shifted" mode, which has both lower- and upper-case letters, but in the opposite order from modern ASCII-1967-derived encodings. Any "Hello, World!' program that produces the requested byte stream on a Commodore will look funny on the Commodore's screen. In the interests of not having to look up a half-dozen obscure Unicode characters, I've chosen to write my program in "shifted" mode, which merely has reversed case.

As a side note, the Commmodore Basic interpreter (and presumably many other Microsoft Basic variants) will let you omit the trailing quotation mark if a string extends to the end of the current source line.

\$\endgroup\$
3
\$\begingroup\$

FlogScript, 17 bytes

{Hello, World!}P.
\$\endgroup\$
0
3
\$\begingroup\$

Actionscript 3.0, 23 22 bytes

trace("Hello, World!")
\$\endgroup\$
3
  • \$\begingroup\$ Does actionscript 3.0 REQUIRE semi-colons? I stopped after 2.0 but I don't think it did back then. \$\endgroup\$ Sep 29 '15 at 21:27
  • 1
    \$\begingroup\$ @AlbertRenshaw is correct, it doesn't require a semi-colon in 3.0. \$\endgroup\$ Oct 2 '15 at 14:17
  • \$\begingroup\$ This works in the Actions pane of the Flash IDE, but Flash Builder or the Actionscript compiler, you need a full class definition. \$\endgroup\$
    – Brian
    Jan 15 '16 at 18:54
3
\$\begingroup\$

Perl, 18 bytes

say"Hello, World!"

Remark:

"say" is used in Perl 6. While "print" is a Perl 5 thing. But "say" can be used in version 5.10+ when the -M5.010 switch (or -M for a higher version) is used.

Perl 5 without version switch, 20 bytes

print"Hello, World!"

Perl/Tk, 91 Bytes

Ok, this doesn't exactly print to STDOUT as was requested by the challenge. Since it creates a window with a button. So this was just added for the sake of entertainment/completeness.

use Tk;MainWindow->new->Button(-text=>"Hello, World!",-command=>sub{exit})->pack();MainLoop

Perl/Tk Hello, World!

\$\endgroup\$
3
  • 1
    \$\begingroup\$ You can shave off 2 bytes by replacing print with say, provided the OP agrees with this meta post in -M5.010 being free. \$\endgroup\$
    – Slade
    Aug 28 '15 at 15:54
  • \$\begingroup\$ I knew "say" is used in Perl 6, but didn't realise they added it to a more recent version of Perl 5 than the one I use. So I added both to the post. \$\endgroup\$
    – LukStorms
    Aug 28 '15 at 19:42
  • \$\begingroup\$ There is another Perl 6 answer, so maybe you could just post the Perl 5 one. \$\endgroup\$ Sep 1 '15 at 21:41
3
\$\begingroup\$

Beam, 128 120 Bytes

'''''''''>`++++++++)@'''P''''>`++++)+@+++++++@P@+++@'P'L'''>`++++++)''P'>`++++)@''p@'p>`+++++)@'p@+++@`p@--------@''p+@H

This uses the general construct:

'''''''''              # increment store to 9
         >             # set direction right. Beginning of loop
          `            # decrement store
           ++++++++    # increment beam 8 
                   )   # set direction left if store not 0. End of loop
                    @  # Output character

Effectively translates to 9 * 8. The store needs to be odd before entering the loop otherwise it will end up being an infinite loop. The Esolangs has examples of this at the bottom in the constants section.

P is used to save to l, o and memory slots 0, 1 and 2.
p is used to retrieves those values to the beam.

The following snippet should run Beam programs, but it hasn't been put through the ringer yet, so is likely to have some bugs.

var ITERS_PER_SEC = 100000;
var TIMEOUT_SECS = 50;
var ERROR_INTERRUPT = "Interrupted by user";
var ERROR_TIMEOUT = "Maximum iterations exceeded";
var ERROR_LOSTINSPACE = "Beam is lost in space";

var code, store, beam, ip_x, ip_y, dir, input_ptr, mem;
var input, timeout, width, iterations, running;

function clear_output() {
document.getElementById("output").value = "";
document.getElementById("stderr").innerHTML = "";
}

function stop() {
running = false;
document.getElementById("run").disabled = false;
document.getElementById("stop").disabled = true;
document.getElementById("clear").disabled = false;
document.getElementById("timeout").disabled = false;
}

function interrupt() {
error(ERROR_INTERRUPT);
}

function error(msg) {
document.getElementById("stderr").innerHTML = msg;
stop();
}

function run() {
clear_output();
document.getElementById("run").disabled = true;
document.getElementById("stop").disabled = false;
document.getElementById("clear").disabled = true;
document.getElementById("input").disabled = false;
document.getElementById("timeout").disabled = false;

code = document.getElementById("code").value;
input = document.getElementById("input").value;
timeout = document.getElementById("timeout").checked;
	
code = code.split("\n");
width = 0;
for (var i = 0; i < code.length; ++i){
	if (code[i].length > width){ 
		width = code[i].length;
	}
}
console.log(code);
console.log(width);
	
running = true;
dir = 0;
ip_x = 0;
ip_y = 0;
input_ptr = 0;
beam = 0;
store = 0;
mem = [];
	
input = input.split("").map(function (s) {
		return s.charCodeAt(0);
	});
	
iterations = 0;

beam_iter();
}

function beam_iter() {
while (running) {
	var inst; 
	try {
		inst = code[ip_y][ip_x];
	}
	catch(err) {
		inst = "";
	}
	switch (inst) {
		case ">":
			dir = 0;
			break;
		case "<":
			dir = 1;
			break;
		case "^":
			dir = 2;
			break;
		case "v":
			dir = 3;
			break;
		case "+":
			++beam;
			break;
		case "-":
			--beam;
			break;
		case "@":
			document.getElementById("output").value += String.fromCharCode(beam);
			break;
		case ":":
			document.getElementById("output").value += beam+"\n";
			break;
		case "/":
			switch (dir) {
				case 0:
					dir = 2;
					break;
				case 1:
					dir = 3;
					break;
				case 2:
					dir = 0;
					break;
				case 3:
					dir = 1;
					break;
			}
		case "\\":
			switch (dir) {
				case 0:
					dir = 3;
					break;
				case 1:
					dir = 2;
					break;
				case 2:
					dir = 1;
					break;
				case 3:
					dir = 0;
					break;
			}
			break;
		case "!":
			if (beam != 0) {
				switch (dir) {
				case 0:
					dir = 1;
					break;
				case 1:
					dir = 0;
					break;
				case 2:
					dir = 3;
					break;
				case 3:
					dir = 2;
					break;
				}
			}
			break;
		case "?":
			if (beam == 0) {
				switch (dir) {
				case 0:
					dir = 1;
					break;
				case 1:
					dir = 0;
					break;
				case 2:
					dir = 3;
					break;
				case 3:
					dir = 2;
					break;
				}
			}
			break;
		case "|":
			switch (dir) {
			case 0:
				dir = 1;
				break;
			case 1:
				dir = 0;
				break;
			}
			break;
		case "_":
			switch (dir) {
			case 0:
				dir = 1;
				break;
			case 1:
				dir = 0;
				break;
			}
			break;
		case "H":
			stop();
			break;
		case "S":
			store = beam;
			break;
		case "L":
			beam = store;
			break;
		case "s":
			mem[beam] = store;
			break;
		case "g":
			store = mem[beam];
			break;
		case "P":
			mem[store] = beam;
			break;
		case "p":
			beam = mem[store];
			break;
		case "u":
			if (beam != store) {
				dir = 2;
			}
			break;
		case "n":
			if (beam != store) {
				dir = 3;
			}
			break;
		case "`":
			--store;
			break;
		case "'":
			++store;
			break;
		case ")":
			if (store != 0) {
				dir = 1;
			}
			break;
		case "(":
			if (store != 0) {
				dir = 0;
			}
			break;
		case "r":
			if (input_ptr >= input.length) {
				beam = 0;
			} else
			{
				beam = input[input_ptr];
				++input_ptr;
			}
			break;
		}
	// Move instruction pointer
	switch (dir) {
		case 0:
			ip_x++;
			break;
		case 1:
			ip_x--;
			break;
		case 2:
			ip_y--;
			break;
		case 3:
			ip_y++;
			break;
	}
	if (running && (ip_x < 0 || ip_y < 0 || ip_x >= width || ip_y >= code.length)) {
		error(ERROR_LOSTINSPACE);
	}
	++iterations;
	if (iterations > ITERS_PER_SEC * TIMEOUT_SECS) {
		error(ERROR_TIMEOUT);
	}
}
}
<div style="font-size:12px;font-family:Verdana, Geneva, sans-serif;">Code:
    <br>
    <textarea id="code" rows="3" style="overflow:scroll;overflow-x:hidden;width:90%;">'''''''''>`++++++++)@'''P''''>`++++)+@+++++++@P@+++@'P'L'''>`++++++)''P'>`++++)@''p@'p>`+++++)@'p@+++@`p@--------@''p+@H</textarea>
    <br>Input:
    <br>
    <textarea id="input" rows="2" style="overflow:scroll;overflow-x:hidden;width:90%;"></textarea>
    <p>Timeout:
        <input id="timeout" type="checkbox" checked="checked">&nbsp;
        <br>
        <br>
        <input id="run" type="button" value="Run" onclick="run()">
        <input id="stop" type="button" value="Stop" onclick="interrupt()" disabled="disabled">
        <input id="clear" type="button" value="Clear" onclick="clear_output()">&nbsp; <span id="stderr" style="color:red"></span>
    </p>Output:
    <br>
    <textarea id="output" rows="6" style="overflow:scroll;width:90%;"></textarea>
</div>

\$\endgroup\$
1
8 9
10
11 12
30

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.