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Reverse an ASCII string

+11

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Your goal is to reverse an ascii string. Given a (optionally newline or null terminated) input, output your input in reverse order, optionally followed by a newline. Terminate afterward. Function answers will not be given a newline, and are not expected to output one unless they print the answer to console.

Examples

Assume all inputs are followed by a newline, and are all standard ASCII encoded.

abcdef -> fedcba
Hello, World! -> !dlroW ,olleH
racecar -> racecar

Example program

function solution(x) {
    return x.split("").reverse().join("");
}

Further clarifications

No, you don't have to handle nulls correctly.
Nor empty inputs.

code-golf

posted almost 4 years ago

CC0

4y ago

554 reputation 10 6 68 43

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is 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.

[Brain-Flak], 12 bytes …

4y ago

[Ahead], 3 bytes SW@ …

4y ago

[C (gcc)], 34 bytes …

4y ago

JavaScript, 25 24 bytes -1 …

3y ago

jq, 16 bytes, preferably `-rR` …

3y ago

C, 66 59 bytes -7 bytes tha …

4y ago

[Python 3], 20 bytes …

3y ago

[Shakespeare Programming Langu …

4y ago

C (gcc), 62 bytes main( …

3y ago

Japt, 1 byte w Uh... …

4y ago

Turing Machine.io, 363 bytes …

3y ago

[PowerShell], 43 bytes …

3y ago

Scala, 9 bytes ```scala .rev …

3y ago

[Perl 5] `-p`, 10 bytes …

3y ago

[Ruby], 14 bytes -> …

4y ago

Laser, 9 bytes ``` c⌜ps …

4y ago

[Haskell], 7 bytes …

3y ago

[Sclipting], (UTF-16) 2 bytes …

3y ago

[Lua], 32 bytes pri …

3y ago

[Bash], 3 bytes rev …

4y ago

Befunge-98, 45 39 37 33 29 21 …

4y ago

Python, 16 bytes ```python …

1y ago

J, 2 bytes ```J |. ``` …

3y ago

[shortC], 24 bytes f(Cs …

3y ago

Rockstar, 67 bytes list …

3y ago

[PHP], 32 24 bytes …

3y ago

[AWK], 48 bytes ORS=""; …

6mo ago

Standard ML, 23 bytes i …

1y ago

R, 32 bytes ```r \(s)intTo …

1y ago

R + magrittr, 31 bytes …

1y ago

Brainfuck, 10 Bytes ```,[ …

1y ago

SOS, 76 bytes +>+>????? …

2y ago

[Java (JDK)], 88 83 bytes …

3y ago

1 comment thread

General comments (7 comments)

33 answers

Score Active Age

+2

−0

Lua, 32 bytes

print(string.reverse(io.read()))

Noice built-in.

posted about 3 years ago

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General Sebast1an‭

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+1

−0

Python, 16 bytes

lambda s:s[::-1]

Attempt This Online!

posted over 1 year ago

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21 reputation 0 5 2 0

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+1

−0

shortC, 24 bytes

f(C*s){*s&&f(s+1)^P*s);}

A shortC conversion of @Sisyphus's C (gcc) implementation.

posted about 3 years ago

CC BY-SA 4.0

General Sebast1an‭

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+1

−0

J, 2 bytes

|.

posted almost 3 years ago

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361 reputation 0 44 36 22

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+1

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PHP, 32 24 bytes

<?=strrev(fgets(STDIN));

posted about 3 years ago

CC BY-SA 4.0

3y ago

General Sebast1an‭

1211 reputation 53 97 129 328

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+1

−0

Rockstar, 67 bytes

listen to S
split S
O's""
while S
roll S into C
let O be C+O

say O

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

posted about 3 years ago

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2131 reputation 4 116 216 166

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+0

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R + magrittr, 31 bytes

.%>%utf8ToInt%>%rev%>%intToUtf8

posted over 1 year ago

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21 reputation 0 5 2 0

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+0

−0

Standard ML, 23 bytes

implode o rev o explode

posted over 1 year ago

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21 reputation 0 5 2 0

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+0

−0

Brainfuck, 10 Bytes

,[>,]<[.<]

Requires EOF to be 0.

,[>,]<[.<]

,           # Read character
 [  ]       # loop as long as current cell is not 0 (EOF)
  >,        # read and fill the tape to the right with the read characters
     <      # go back to the last valid character, i.e. one before EOF
      [  ]  # loop till current cell is 0 (i.e. cell pointer is before the first read character
       .<   # output character and move left

posted over 1 year ago

CC0

1y ago

110 reputation 6 6 11 52

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+0

−0

AWK, 48 bytes

ORS="";{l=split($0,d,"");for(;l>0;)print d[l--]}

posted 6 months ago

CC BY-SA 4.0

6mo ago

41 reputation 0 9 4 17

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+0

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SOS, 76 bytes

+>+>?<+>?<+>?<+>?<+>?<+>?<+>?<+>?<<)<<-(>{>!<{>!<{>!<{>!<{>!<{>!<{>!<{>!<<-)

posted over 2 years ago

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1364 reputation 28 48 176 73

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+0

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R, 32 bytes

\(s)intToUtf8(rev(utf8ToInt(s)))

Attempt This Online!

posted over 1 year ago

CC BY-SA 4.0

21 reputation 0 5 2 0

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+0

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Java (JDK), 88 83 bytes

static void f(String s){for(int i=s.length();i>0;System.out.print(s.charAt(--i)));}

posted about 3 years ago

CC BY-SA 4.0

3y ago

General Sebast1an‭

1211 reputation 53 97 129 328

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