«# Self Modifying Code»

MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNdyssoooyNMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMNy/..` ``` ``..--/+/+yydNMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMNy- ` `....+mMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMNs.` `` `...`/hNMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMN+` `-dMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMN: ` ``-dMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMN- ` ``.:/dMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMdo` `.-/-hMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMNo` .:/:/.:hMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMN/ `.../sms.:oNMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMo` ``..-//:yNMMm::shMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMy. ``..---.``.::///++oyNMMMMM+:soMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMN- ``..---::::/+ooosydmNMMMMMMN+//+NMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMy- `....---:://+oyhdmNNNNMMMMMMmy/-+NMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMmo `....----::/++ohmmNNNNMMMMMMMMN/./mMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMN/ `.....``````..-::/osyhddhhddddmNd..+NMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMy` `.--...```````` ``-:/+++/:.``./hs`oNMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMNo+:.` .---..``` `.`````.:+o:.` `:+mNNMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMm:` ```----...``````:-``.``-+mN+..``:NNMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMmh-..`..`-::--........---....-oNMNdyyhmMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMho:. `-..``-:----..--::::::-...-+NMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMNo. ` `.-------:://///:-....-/hMMMMMMMMMh`oMMMMMMMMMMMMMMMM
MMMMMMMMMMMMN- .-:------:::::--.`..--/sMMMh+yNMMh sMMMMMMMMMMMMMMM
MMMMMMMMMMMMo `.-----..........`````.-+dNm+-/dN- +MMMMMMMMMMMMMMM
MMMMMMMMMMMM. `.--...````````````````.oNMMo:.o/ +MMMMMMMMMMMMMMM
MMMMMMMMMMMM/ `....````` ````.-:/+hmmy-:/y oMMMMMMMMMMMMMMM
MMMMMMMMMMMMs ``..````````` ```.-+shyydh. dMMMMMMMMMMMMMMM
MMMMMMMMMMMMy ``````````..``````--:/yMMNmh. /mMMMMMMMMMMMMMM
MMMMMMMMMMMMs `````` ``````````.-oNNh+. .+oyhhmMMMMMMMM
MMMMMMMMMMMM. ` ````````....-:ohmNd/` `-:+sh
MMMMMMMMMMMs `...--/ydy:
MMMMMMMMmdy- `.-.
MMMNy+-.
ms: ```
Martin Kleppe
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM

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/___ __/._____ _ _ _ _ _ ____
/___/ /__//_//____//_//_//_/ /_//_//____/ @aemkei

.<script>
eval(z='p="<"+"pre>"/* ,.oq#+ ,._, */;for(y in n="zw24l6k
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<pre id=P>
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<!DOCTYPE html>
<html>
<head>
<title>Title</title>
<script type="text/javascript">
function init() { ... }
</script>
</head>
<body onload="init()">
...
</body>
</html>

...
</body>
</script>

</script>
...
</body>

<body onload='b.innerHTML="<pre>"+1'id=b >id=b onload="b.innerHTML='<pre>'+1"

<pre id=b><script>b.innerHTML=1</script>

var x = Math.random();
var y = Math.random();
var z = Math.max(x, y);

x = Math.random();
y = Math.random();
z = Math.max(x, y);

M = Math;
x = Math.random();
y = Math.random();
z = Math.max(x, y);

M = Math;
x = M.random();
y = M.random();
z = M.max(x, y);

M = Math;
r = M.random;
x = M.random();
y = M.random();
z = M.max(x, y);

M = Math;
r = M.random;
x = r();
y = r();
z = M.max(x, y);

M = Math;
r = "random";
x = M[r]();
y = M[r]();
z = M.max(x, y);

M = Math;
r = "random";
x = M[r="random"]();
y = M[r]();
z = M.max(x, y);

M = Math;
x = M[r="random"]();
y = M[r]();
z = M.max(x, y);

with (Math){
x = random();
y = random();
z = max(x, y);
}

with (Math)
x = random(),
y = random(),
z = max(x, y);

with (Math)
x = (r=random)(),
y = r(),
z = max(x, y);

with (Math)
z = max((r=random)(), r());

with(Math)z=max((r=random)(),r())

Зв
езда
<bOdY
oNLOAd=
"Я=[];Л=
{};Ж=!Я;З=
!Ж;Ч=!+Я;Д=
Ч+Ч;П=З+Я;Б=Д+Ч;Ю=Ж+Я;Ф=[Ж]+Я[Я];И=П[+Ч]
Ы=Я[Ю[+Я]+Ф[+Ч+[+Я]]+Ю[Д]+П[+Я]+П[
Б]+И];C=Я[Я]+Я;P=Я+Л;Ь=Д+Б;Ш
=+Ч;X=+Я;Й=' ';К='Й'
H=П[X];T=Д+[X];Ы[P
[Ь]+P[Ш]+C[Ш]+Ю[Б]+H
+И+C[X]+P[Ь]+H+P[Ш]+И
](Ю[Ш]+Ю[ Д]+П[Б]+И
+H+(Ж+Ы )[T]+К+
(З+Ы) [T])(
)"> смЕ
р Ти

Зв
езда
<body
onload=
"Я=[];Л=
{};Ж=!Я;З=
!Ж;Ч=!+Я;Д=
Ч+Ч;П=З+Я;Б=Д+Ч;Ю=Ж+Я;Ф=[Ж]+Я[Я];И=П[+Ч]
Ы=Я[Ю[+Я]+Ф[+Ч+[+Я]]+Ю[Д]+П[+Я]+П[
Б]+И];C=Я[Я]+Я;P=Я+Л;Ь=Д+Б;Ш
=+Ч;X=+Я;Й=' ';К='Й'
H=П[X];T=Д+[X];Ы[P
[Ь]+P[Ш]+C[Ш]+Ю[Б]+H
+И+C[X]+P[Ь]+H+P[Ш]+И
](Ю[Ш]+Ю[ Д]+П[Б]+И
+H+(Ж+Ы )[T]+К+
(З+Ы) [T])(
)"> смЕ
р Ти

="" , = ! + , =! + , =
+{}, = [ ++ ], = [ = ] , =
++ + , = [ + ], [ += [
]+( . + )[ ] + [ ]+ + + [ ]+
+ + [ ]+ ][ ] ( [
]+ [ ]+ [ ]+
+ + "( )"
)()

without Latin characters?
How to write JavaScript

1. Escape Sequences
2. Playing Scrabble

[]["155141160]["
143157156163164
162165143164157
162"]("141154145
162164506151")()

[]["155141160"]["
143157156163164
162165143164157
162"]("141154145
162164506151")()

[][" m a p "]["
c o n s t
r u c t o
r "](" a l e
r t ( 1 ) ")()

[]["map"]["constructor"]("alert(1)")()

function["constructor"]("alert(1)")()

![] + "" => "false"
!![] + "" => "true"

"true"[0] => "t"
"true"[1] => "r"
"true"[2] => "u"
"true"[3] => "e"

"false" [1]
"false" [2]
"true" [3]
"true" [1]
"true" [0]

f a l s e
f a l s e
t r u e
t r u e
t r u e

f a l s e
o b j e c t
t r u e
f a l s e
o b j e c t
o b j e c t
f a l s e
t r u e

o b j e c t
o b j e c t
u n d e f i n e d
f a l s e
t r u e
t r u e
t r u e
o b j e c t
t r u e
o b j e c t
t r u e

Can we hide JavaScript
inside itself?

for(b=i=[X=3772];i--;)b[i]=68*i%9%2;setInterval('for
(a=b,b=[h="<pre>"],i=0;i++<X;i%w||(h+="n")){for(d=j
=0;e=[1,91,w,93][j++];)d+=a[i+e]+a[i-e];h+=".#"[b[i]
=3==d|a[i]&2==d]}document.body.innerHTML=h',w=92)

1616161F171212181612131D1619131D151B1518131D1313131713171312
151D131B1619121D121D131B12191612151B1619151D131D13161318121A
16191215131912151312131B1713161517141419161E1714161517121716
1611161C121812171616161F171212181611131D1612121C1612131D151B
1618131D1212131C171017121615131E1212151D121C1619131D1310131B
1619121B121B131C1518131B161912151717171C171C12181618121B131D
1212151C151C161E121212191219171B1616161F171212181614131D161A
131D1310131B1615131D151B1311121C13191311121C1717121C13191313
151D151B161A121B121B151D131B12191614121B131D1611151B1619121B
1615151D121B1611151B1619121D1615151D131B1618121B131D1212121E
12131212151B1612151B1619151D131D1313131D131D1614171C1611151B
1619151D12161312131D131D1614151D171D1614161F16131715161D1615
161E1714121E1612161F16141719121E1619161E161E1615171214181514
141D141C131D16181217121C1717131D131913121219

escape('').replace(/..(.)..(.)/g,'x$1$2')

0 1 2 3 4 5 6 7 8 9 A B C D E F

00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F

00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
16 11 16 1C 16 15 17 12 17 14 12 18 13 11 12 19

%16%11%16%1C%16%15%17%12%17%14%12%18%13%11%12%19

6 1 6 C 6 5 7 2 7 4 2 8 3 1 2 9

-moz-control-character-visibility: visible;

").replace(/..(.)..(.)/g,'x$1$2')escape("

").replace(/..(.)..(.)/g,'x$1$2')
escape("1616161F171212181612131D1619131D151B1518131D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... within Mozilla;
some people like
the idea of displaying
control characters
“
”

Let us play the game
on the next level …

[]
["155141160"]
["143157156163164162165143164157162"]
("145166141154(145166141154(474247053
145163143141160145("")56162145160154
141143145(575656(56)5656(56)57147054
471341341704461446247)53474247))")
()

[]
["map"]
["constructor"]
("145166141154(145166141154(474247053
145163143141160145("")56162145160154
141143145(575656(56)5656(56)57147054
471341341704461446247)53474247))")
()

[]
["map"]
["constructor"]
("eval(escape('').replace(...))")
()

escape('')
.replace(
/..(.)..(.)/g,
'x$1$2'
)

escape('')
.replace(
/.{5}(.).{5}(.).{5}(.)/g,
'$1$2$3'
)

0 1 2 3 4 5 6 7
8 9 A B C D E F

1 1 1 1 1 1 1 1
4 4 4 4 4 4 4 4
4 4 4 4 4 4 4 4
0 1 2 3 4 5 6 7

1 1 1 1 1 1 1 1
4 4 4 4 4 4 4 4
4 4 4 4 4 4 4 4
0 1 2 3 4 5 6 7
֠ ֡ ֢ ֣ ֤ ֥ ֦ ֧

1 1 1 1 1 1
4 4 4 4 4 4
4 4 4 4 4 4
1 4 1 1 5 4

%u05A1%u05A4%u05A1%u05A1%u05A5%u05A4

..... 00000
..##. => 00110
..... 00000

..... 00000
..##. => 00110 192
..... 00000

..... 00000
..... => 00000 192>>5=6
..##. 00110

..... 00000
..... => 00000 6>>1=3
...## 00011

..... 00000
..... => 00000 6&3 =2
...X. 00010

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██║ ╚██████╔╝██║ ╚████║
╚═╝ ╚═════╝ ╚═╝ ╚═══╝

██╗ ██╗███╗ ███╗██╗████████╗███████╗
██║ ██║████╗ ████║██║╚══██╔══╝██╔════╝
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::::::::::: ::: ::: ::: :::: ::: ::: :::
   :+: :+: :+: :+: :+: :+:+: :+: :+: :+:
   +:+ +:+ +:+ +:+ +:+ :+:+:+ +:+ +:+ +:+
   +#+ +#++:++#++ +#++:++#++: +#+ +:+ +#+ +#++:+
   +#+ +#+ +#+ +#+ +#+ +#+ +#+#+# +#+ +#+
   #+# #+# #+# #+# #+# #+# #+#+# #+# #+#

«# Self Modifying Code»

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