split

gistfile1.txt

$ ruby -e 'puts ("".split(" ")).inspect'
[]

$ perl -MData::Dumper -E 'say Dumper([split(" ", "")])'
$VAR1 = [];

$ python -c 'print "".split(" ")'
['']

# https://play.golang.org/p/qErK71KCsF
$ echo 'package main

import (
"fmt"
"strings"
)

func main() {
fmt.Println(strings.Split(" ", ""))
}
' > split.go; go run split.go
[ ]

$ echo 'class Split {
>     public static void main(String []args) {
>         String[] bits = "".split(" ");
>         System.out.print("[");
>         for (String b : bits) {
>             System.out.print("\"" + b + "\" ");
>         }
>         System.out.println("]");
>     }
> }
> ' > split.java && javac split.java && java Split
["" ]