Given a string and integer n, split the string at n characters, and print as follows: [duplicate]

Question

Given a string and integer n, split the string at n character, and print as follows: Ex)

laptop 3 should print lap top

laptop 2 should print la pt op (see how it splits the string at every 2nd char)

Special cases:

laptop 0 should print laptop (since we split at every 0th char, thus none)

laptop 9 should print laptop (since length of laptop < 9, so no splitting)

bob 2 should print bo b (we split at the o (2nd char), but then there aren't enough characters after, so we just leave as is`

You may assume n >= 0

Answer 1

JavaScript, 54 47 bytes

s=>n=>n?eval(`s.match(/.{1,${n}}/g)`).join` `:s

f=
s=>n=>n?eval(`s.match(/.{1,${n}}/g)`).join` `:s


console.log(
    f('laptop')(0),
    f('laptop')(1),
    f('laptop')(2),
    f('laptop')(3),
    f('laptop')(4)
)

Answer 2

Japt, 7 bytes

òVªLl)¸

Test it online!

Explanation

            Implicit: U, V = inputs
UòV   )     Split U into slices of length V.
   ªLl      If V is 0, instead use 100! (roughly 9.3326e+157).
       ¸    Join with spaces.
            Implicit: output result of last expression

9.3326e+157 is far larger than JavaScript's max string size of 9.0072e+15, so this will work for any input.

Answer 3

PHP, 48 bytes

[,$s,$n]=$argv;echo$n?chunk_split($s,$n," "):$s;

Run with -r.

Answer 4

Jelly,  7  5 bytes

sW⁹?K

A full program printing the result (or a dyadic link returning a list of characters).

Try it online!

How?

sW⁹?K - Main link: list of characters, a; number, n
   ?  - if:
  ⁹   -       chain's right argument = n (0 is not truthy, positive integers are)
s     - then: split a into chunks of length n (overflow kept like the challenge requires)
 W    - else: wrap a in a list
    K - join with spaces (the wrapped list becomes depth 1 again with no spaces)
      - implicit print

Answer 5

Haskell, 33 bytes

import Data.List
s!n=chunksOf n s

Answer 6

CJam, 11 bytes

q~:X{X/S*}&

Try it online!

How it works

q~           e# Read all input and evaluate. Pushes the string and the number n
  :X         e# Store n in variable X
    {    }&  e# If top of the stack (number n) is nonzero, run this block
     X       e# Push N again
      /      e# Split into pieces that long. Last piece may be shorter
       S     e# Push space
        *    e# Join using spaces
             e# Implicitly display

Answer 7

QBIC, 27 bytes

_L;|~:|\b=a][1,a,b|?_sA,c,b

Explanation

_L;|        set a as the length of A$ (input from cmd line)
~:|         IF b (input num from cmd line) is anything but 0 THEN (empty)
\b=a        ELSE (b==0) set b to the full length of A$
]           END IF
[1,a,b|     FOR c = 1; c <= LEN(A$); c = c + b
?_sA,c,b    PRINT a substring of A$, starting at c, running for b chars.
            NEXT is auto-added at EOF

Answer 8

Python 2, 76 67 56 bytes

-13 bytes thanks to ETHproductions and notjagan.

lambda s,n:n and[s[i:i+n]for i in range(0,len(s),n)]or s

Try it online!

Regex solution, 56 bytes

lambda s,n:re.findall('.{1,%i}'%n or len(s),s)
import re

Try it online!

Answer 9

Mathematica, 114 bytes

d=StringRiffle;If[#2>(s=StringLength@#)||#2==0,#,k=d@StringPartition[#,#2];If[#2<=s/2,k,d[{k,StringDrop[#,#2]}]]]&