You can do everything in Javascript with six characters: []()!+

beschizza · 16 October 2017 11:29

Originally published at: https://boingboing.net/2017/10/16/you-can-do-everything-in-javas.html

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8080256256 · 16 October 2017 11:44

You can do everything in binary with two characters: 01

athanor1723 · 16 October 2017 12:18

I’m not seeing how to program in only 2 characters. P’’ seems about as small as it gets.
https://en.wikipedia.org/wiki/P′′ I’d be interested how to do it in only 2.

Discordian_Eris · 16 October 2017 12:27

Oh sweet Goddess! I can’t wait 'til someone replaces js.node with the JSFuck version. Epic pwnage when someone’s website tries to get you to download a 20 gig javascript file that is just there for analytics.

Fang · 16 October 2017 12:46

2 characters, not two instructions.

Cunk · 16 October 2017 13:17

Should I be alarmed that my browser displayed a dialog that said “good luck and good night” when I viewed this article? Does Internet Explorer 4 do that too? Maybe I should upgrade.

brad_quinn · 16 October 2017 13:20

AND and NOT should be enough

karl_jones · 16 October 2017 13:57

You know where this leads, don’t you?

"JavaScript … imperfections … sterilize … "

Sludge · 16 October 2017 14:51

It seems like more work.

Bernel · 16 October 2017 16:02

One thing you can’t do with only six characters: write readable code.

semiotix · 16 October 2017 16:19

Bah. The only serious esoteric language is Piet, which does all that in six colors.

Okay, three shades each of six colors. Plus black and white. Point being, it’s prettier so it’s better.

anon41977465 · 16 October 2017 16:23

I can do everything in your username with 5 characters.

semiotix · 16 October 2017 16:27

I’m filing away the obvious “your mom” variant of that diss for future use.

weekendlites · 16 October 2017 17:00

It is like trying to break into a computer in Fallout

FGD135 · 16 October 2017 20:08

You can do everything in assembler.

bryan · 16 October 2017 20:35

Isn’t that true of regular JS as well?

jerwin · 17 October 2017 08:52

MAPPING is full of win.

  't':   '(true+"")[0]',
    'u':   '(undefined+"")[0]',
    'v':   '(+(31))["to"+String["name"]](32)',
    'w':   '(+(32))["to"+String["name"]](33)',
    'x':   '(+(101))["to"+String["name"]](34)[1]',
    'y':   '(NaN+[Infinity])[10]',
    'z':   '(+(35))["to"+String["name"]](36)',

    'A':   '(+[]+Array)[10]',
    'B':   '(+[]+Boolean)[10]',
    'C':   'Function("return escape")()(("")["italics"]())[2]',
    'D':   'Function("return escape")()([]["fill"])["slice"]("-1")',
    'E':   '(RegExp+"")[12]',
    'F':   '(+[]+Function)[10]',
    'G':   '(false+Function("return Date")()())[30]',
    'H':   USE_CHAR_CODE,
    'I':   '(Infinity+"")[0]',

I think I see a pattern!

anon89609066 · 17 October 2017 11:59

I can name that tune in zero notes, Jim.

rottytooth · 17 October 2017 13:28

I interviewed the creator (discoverer?) of JSFuck, Martin Kleppe, about this and his other projects here

capnjimbo · 17 October 2017 13:36

Yeah, but you can use those characters to find someone to write readable code.