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Challenges Q&A Sandbox Meta

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"Hello, World!"

+24

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Introduction

The classic "Hello, World" challenge. What more can I say?

Rules

Program takes no input.
Program outputs Hello, World! with an optional trailing newline. No other output is accepted.

Shortest submission in bytes wins.

code-golf kolmogorov-complexity

posted about 4 years ago

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241 reputation 1 0 24 0

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is a duplicate

This question has been asked before and has already been answered. It should be marked as a duplicate.

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not constructive

This question cannot be answered in a way that is helpful to anyone. It's not possible to learn something from possible answers, except for the solution for the specific problem of the asker.

Shakespeare Programming Langua …

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Vyxal, 2 bytes KH Th …

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PHP, 13 bytes Hello, Wo …

4y ago

HQ9+, 1 byte H Oblig …

4y ago

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QBASIC, 17, 16 bytes ?" …

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C# 9, 38 bytes System.C …

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Perl 5 `-E`, 18 bytes ``` …

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[Python 2], 20 bytes …

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R, 20 bytes ``` cat("Hello …

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[Bash], 18 bytes ec …

4y ago

SOGL, 10 bytes ╥‰⅜,(ε ‘ū …

4y ago

///, 13 bytes ``` Hello, W …

3y ago

[PowerShell], 15 bytes …

3y ago

[RoadLang], 59 bytes …

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AppleScript, 15 bytes " …

4y ago

[JavaScript (V8)], 28 bytes …

4y ago

[ARBLE], 15 bytes " …

4y ago

Japt, 11 bytes `HÁM, W …

4y ago

Raku, 19 bytes ``` "Hello, W …

4y ago

J, 15 bytes ``` 'Hello, Wo …

3y ago

[dc], 16 bytes [Hello, …

3y ago

[Seriously], 1 byte H …

3y ago

[Unlambda], 40 bytes `` …

3y ago

[Haskell], 25 bytes …

3y ago

Turing Machine.io, 202 bytes …

3y ago

Scala, 42 bytes object>e …

3y ago

[C# (.NET Core)], 67 bytes …

3y ago

Rockstar, 19 bytes say …

3y ago

PureScript, 25 bytes ``` m …

3y ago

Swift, 23 bytes ```swift p …

3y ago

Kotlin, 34 bytes ```kotlin …

3y ago

[Forth (gforth)], 16 bytes …

3y ago

HTML, 26 13 bytes ``` Hell …

3y ago

[C (gcc)], 30 bytes …

6mo ago

[K (oK)], 15 bytes "Hel …

6mo ago

[AWK], 2 bytes $0 Tr …

6mo ago

C (gcc), 46 bytes ```cpp pri …

2y ago

Z80 Assembler, 50 bytes ``` …

2y ago

JavaScript V8, 26 bytes ``` …

2y ago

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2y ago

[shortC], 16 bytes AJ"H …

3y ago

[jq] `--null-input` `--raw-out …

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1 comment thread

General comments (6 comments)

61 answers

Score Active Age

+2

−0

ARBLE, 15 bytes

"Hello, World!"

Simple use of Implicit IO. Polyglot with half a dozen golf langauges.

posted about 4 years ago

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111 reputation 1 1 11 0

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+2

−0

JavaScript (V8), 28 bytes

console.log("Hello, World!")

posted about 4 years ago

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171 reputation 2 2 17 3

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General comments (1 comment)

+2

−0

Japt, 11 bytes

`HÁM, Wld!

Just using Japt's builtin compression.

posted about 4 years ago

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2306 reputation 17 46 242 48

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+4

−1

Raku, 19 bytes

"Hello, World!".say

Explanation

~~First~~ second answer of the.. entire site, actually. Nothing special. I don't think this can go shorter, but this is Raku, who actually knows. I made this post to (possibly) try and set a precedent for what a answer should look like. Obv you don't have to explain it, but it's nice.

posted about 4 years ago

CC0

4y ago

554 reputation 10 6 68 43

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+2

−0

PowerShell, 15 bytes

"Hello, World!"

posted over 3 years ago

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131 reputation 0 4 13 0

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+1

−0

HTML, 26 13 bytes

Hello, World!

Golfed 13 bytes thanks to @Razetime's advice.

posted over 3 years ago

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3y ago

General Sebast1an‭

1211 reputation 53 97 129 328

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general (1 comment)

+1

−0

Scala, 42 bytes

object>extends App{print("Hello, World!")}

Attempt This Online!

posted over 3 years ago

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1546 reputation 9 59 174 89

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+1

−0

Rockstar, 19 bytes

say "Hello, World!"

Try it here (Code will need to be pasted in)

posted over 3 years ago

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2131 reputation 4 116 216 166

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+1

−0

Turing Machine.io, 202 bytes

0 1 101 3 1 2 0
0 2 108 3 1 3 0
0 3 108 3 1 4 0
0 4 111 3 1 5 0
0 5 44 3 1 6 0
0 6 32 3 1 7 0
0 7 87 3 1 8 0
0 8 111 3 1 9 0
0 9 114 3 1 a 0
0 a 108 3 1 b 0
0 b 100 3 1 c 0
0 c 33 3 1 0 1

Basically just keeps replacing the current cell value with the ASCII value of whatever character in "Hello, World!" its printing and moving on. I might add a more detailed explanation later (or maybe someone else can, if they feel like it).

posted about 3 years ago

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41 reputation 0 2 4 0

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+1

−0

PureScript, 25 bytes

main=log("Hello, World!")

posted over 3 years ago

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Kevin M. Mansour‭

101 reputation 1 7 12 8

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+1

−0

Unlambda, 40 bytes

`````````````.H.e.l.l.o.,. .W.o.r.l.d.!i

posted about 3 years ago

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1364 reputation 28 48 176 73

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+1

−0

C# (.NET Core), 67 bytes

class a{static void Main(){System.Console.Write("Hello, World!");}}

posted over 3 years ago

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3y ago

General Sebast1an‭

1211 reputation 53 97 129 328

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+1

−0

dc, 16 bytes

[Hello, World!]p

posted about 3 years ago

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51 reputation 0 4 5 0

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+1

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Forth (gforth), 16 bytes

." Hello, World!

posted over 3 years ago

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11 reputation 0 1 1 0

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+1

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Seriously, 1 byte

Similar to HQ9+.

posted about 3 years ago

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General Sebast1an‭

1211 reputation 53 97 129 328

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+1

−0

Haskell, 25 bytes

main=print"Hello, World!"

posted about 3 years ago

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81 reputation 0 6 8 1

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+1

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Kotlin, 34 bytes

fun main(){print("Hello, World!")}

posted over 3 years ago

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Kevin M. Mansour‭

101 reputation 1 7 12 8

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+1

−0

Swift, 23 bytes

print("Hello, World!")

posted over 3 years ago

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Kevin M. Mansour‭

101 reputation 1 7 12 8

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+1

−0

J, 15 bytes

'Hello, World!'

Or if you prefer to beat around the bush...76 bytes.

{:a.{~-:^:_1@:|.~&2 S:0<@:<\50 16.5 36 50.5 54 54 55.5 22 16 43.5 55.5 57 54

posted almost 3 years ago

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+0

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SOS, 155 Bytes

!+!-!!+!-!!!!+!!-!!+!-!+!-!+!!-!+!!-!!!+!!-!+!!-!!!+!!-!+!!!!-!!+!-!+!!-!!!!+!-!!!!!!+!-!+!-!+!!!-!+!!-!+!!!!-!+!!!-!!+!-!!+!!-!+!!-!!!+!!-!!+!-!!+!-!!!!+!

Explanation:

Each ! outputs a single bit. That bit is 0 if the current stack is empty, and 1 otherwise. Initially the stack is empty. + adds something (an empty stack) to it, and - removes it. As soon as 8 bits are output, the corresponding byte is sent to stdout. Therefore the sequence up to the 8th !, !+!-!!+!-!!! outputs the bit sequence 01001000, which is the ASCII code for the letter H.

The last character uses the fact that if at the end of the program less than 8 bits are output, the value is left-padded with zeros, and the resulting byte is output. So with comments (and spaces to make the output commands line up), the program reads like this:

 !+!-! !+!-! ! !  Output 01001000, i.e. H
 !+! !-! !+!-!+!  Output 01100101, i.e. e
-!+! !-!+! !-! !  Output 01101100, i.e. l
 !+! !-!+! !-! !  Output 01101100, i.e. l
 !+! !-!+! ! ! !  Output 01101111, i.e. o
-! !+!-!+! !-! !  Output 00101101, i.e. comma
 ! !+!-! ! ! ! !  Output 00100000, i.e. space
 !+!-!+!-!+! ! !  Output 01010111, i.e. W
-!+! !-!+! ! ! !  Output 01101111, i.e. o
-!+! ! !-! !+!-!  Output 01110010, i.e. r
 !+! !-!+! !-! !  Output 01101100, i.e. l
 !+! !-! !+!-! !  Output 01100100, i.e. d
    +!-! ! ! !+!  Output 00100001, i.e. exclamation mark

posted over 2 years ago

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2y ago

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