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domdiff.js
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var
domdiff
=
hyperHTML
.
diff
;
var
assert
=
tressa
.
assert
;
var
clean
=
function
(
)
{
for
(
var
cn
=
document
.
body
.
childNodes
,
i
=
cn
.
length
;
i
--
;
)
{
document
.
body
.
removeChild
(
cn
[
i
]
)
;
}
}
;
var
compare
=
function
(
state
,
value
)
{
assert
(
state
.
length
===
value
.
length
&&
value
.
split
(
''
)
.
every
(
function
(
v
,
i
)
{
return
state
[
i
]
===
nodes
[
v
]
;
}
)
,
value
||
'[empy]'
)
;
}
;
var
notNull
=
function
(
any
)
{
return
any
!=
null
;
}
;
tressa
.
title
(
'domdiff'
)
;
assert
(
typeof
domdiff
===
'function'
,
'is a function'
)
;
var
nodes
=
{
'a'
:
document
.
createTextNode
(
'a'
)
,
'b'
:
document
.
createTextNode
(
'b'
)
,
'c'
:
document
.
createTextNode
(
'c'
)
,
'd'
:
document
.
createTextNode
(
'd'
)
,
'e'
:
document
.
createTextNode
(
'e'
)
,
'f'
:
document
.
createTextNode
(
'f'
)
,
'g'
:
document
.
createTextNode
(
'g'
)
,
'h'
:
document
.
createTextNode
(
'h'
)
,
'i'
:
document
.
createTextNode
(
'i'
)
,
'j'
:
document
.
createTextNode
(
'j'
)
,
'k'
:
document
.
createTextNode
(
'k'
)
}
;
clean
(
)
;
var
options
=
{
before
:
document
.
createTextNode
(
'-'
)
}
;
var
futureState
=
domdiff
(
document
.
body
,
[
]
,
[
nodes
.
b
,
nodes
.
c
,
nodes
.
d
]
)
;
compare
(
futureState
,
'bcd'
)
;
// same list, no changes
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
b
,
nodes
.
c
,
nodes
.
d
]
)
;
compare
(
futureState
,
'bcd'
)
;
// more on the left
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
]
)
;
compare
(
futureState
,
'abcd'
)
;
// more on the right
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
]
)
;
compare
(
futureState
,
'abcdef'
)
;
// more in the middle
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
g
,
nodes
.
h
,
nodes
.
i
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
]
)
;
compare
(
futureState
,
'abcghidef'
)
;
// drop from right
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
g
,
nodes
.
h
,
nodes
.
i
,
nodes
.
d
,
nodes
.
e
]
)
;
compare
(
futureState
,
'abcghide'
)
;
// drop from left
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
c
,
nodes
.
g
,
nodes
.
h
,
nodes
.
i
,
nodes
.
d
,
nodes
.
e
]
)
;
compare
(
futureState
,
'cghide'
)
;
// drop in between
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
c
,
nodes
.
g
,
nodes
.
d
,
nodes
.
e
]
)
;
compare
(
futureState
,
'cgde'
)
;
// drop all nodes
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
]
)
;
compare
(
futureState
,
''
)
;
domdiff
(
document
.
body
,
futureState
,
[
options
.
before
]
)
;
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
b
,
nodes
.
c
,
nodes
.
d
]
,
options
)
;
compare
(
futureState
,
'bcd'
)
;
// same list, no changes with before
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
b
,
nodes
.
c
,
nodes
.
d
]
,
options
)
;
compare
(
futureState
,
'bcd'
)
;
// more on the left with before
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
]
,
options
)
;
compare
(
futureState
,
'abcd'
)
;
// more on the right with before
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
]
,
options
)
;
compare
(
futureState
,
'abcdef'
)
;
// more in the middle with before
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
g
,
nodes
.
h
,
nodes
.
i
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
]
,
options
)
;
compare
(
futureState
,
'abcghidef'
)
;
// drop from right with before
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
g
,
nodes
.
h
,
nodes
.
i
,
nodes
.
d
,
nodes
.
e
]
,
options
)
;
compare
(
futureState
,
'abcghide'
)
;
// drop from left with before
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
c
,
nodes
.
g
,
nodes
.
h
,
nodes
.
i
,
nodes
.
d
,
nodes
.
e
]
,
options
)
;
compare
(
futureState
,
'cghide'
)
;
// drop in between with before
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
c
,
nodes
.
g
,
nodes
.
d
,
nodes
.
e
]
,
options
)
;
compare
(
futureState
,
'cgde'
)
;
// drop one in between with before
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
c
,
nodes
.
g
,
nodes
.
e
]
,
options
)
;
compare
(
futureState
,
'cge'
)
;
// drop all nodes with before
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
]
,
options
)
;
compare
(
futureState
,
''
)
;
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
]
,
options
)
;
compare
(
futureState
,
'abcdef'
)
;
// partial substitution one to many
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
g
,
nodes
.
i
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
]
,
options
)
;
compare
(
futureState
,
'abgidef'
)
;
// partial substitution many to o e
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
]
,
options
)
;
compare
(
futureState
,
'abcdef'
)
;
// inner diff
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
j
,
nodes
.
g
,
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
,
nodes
.
h
,
nodes
.
i
]
,
options
)
;
compare
(
futureState
,
'jgabcdefhi'
)
;
// outer diff
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
]
,
options
)
;
compare
(
futureState
,
'abcdef'
)
;
// fuzzy diff
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
a
,
nodes
.
g
,
nodes
.
c
,
nodes
.
d
,
nodes
.
h
,
nodes
.
i
]
,
options
)
;
compare
(
futureState
,
'agcdhi'
)
;
// fuzzy diff
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
i
,
nodes
.
g
,
nodes
.
a
,
nodes
.
d
,
nodes
.
h
,
nodes
.
c
]
,
options
)
;
compare
(
futureState
,
'igadhc'
)
;
// reversed diff
futureState
=
domdiff
(
document
.
body
,
futureState
,
[
nodes
.
c
,
nodes
.
h
,
nodes
.
d
,
nodes
.
a
,
nodes
.
g
,
nodes
.
i
]
,
options
)
;
compare
(
futureState
,
'chdagi'
)
;
clean
(
)
;
var
newState
=
domdiff
(
document
.
body
,
[
]
,
[
nodes
.
d
,
nodes
.
f
,
nodes
.
g
]
)
;
compare
(
newState
,
'dfg'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
]
.
concat
(
newState
)
)
;
compare
(
newState
,
'abcdfg'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
,
nodes
.
g
]
)
;
compare
(
newState
,
'abcdefg'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
newState
.
slice
(
)
.
reverse
(
)
)
;
compare
(
newState
,
'gfedcba'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
f
,
nodes
.
d
,
nodes
.
b
,
nodes
.
a
,
nodes
.
e
,
nodes
.
g
]
)
;
compare
(
newState
,
'fdbaeg'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
]
)
;
compare
(
newState
,
'abcdef'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
,
nodes
.
h
,
nodes
.
i
,
nodes
.
j
]
)
;
compare
(
newState
,
'abcdefhij'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
,
nodes
.
g
,
nodes
.
h
,
nodes
.
i
,
nodes
.
j
,
nodes
.
k
]
,
{
node
:
Object
,
compare
:
(
a
,
b
)
=>
a
===
b
}
)
;
compare
(
newState
,
'abcdefghijk'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
g
,
nodes
.
h
,
nodes
.
i
]
,
{
node
:
Object
}
)
;
compare
(
newState
,
'ghi'
)
;
document
.
body
.
insertBefore
(
nodes
.
f
,
nodes
.
g
)
;
if
(
'onclick'
in
document
.
body
)
{
console
.
log
(
'browser only'
)
;
compare
(
[
]
.
slice
.
call
(
document
.
body
.
childNodes
)
,
'fghi'
)
;
}
clean
(
)
;
document
.
body
.
insertBefore
(
nodes
.
k
,
null
)
;
newState
=
domdiff
(
document
.
body
,
[
]
,
[
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'cde'
)
;
/*
newState = domdiff(
document.body,
newState,
[
null, nodes.c, nodes.d, nodes.e, null
],
{before: nodes.k}
);
compare(newState.filter(notNull), 'cde');
newState = domdiff(
document.body,
newState,
[
nodes.a, nodes.c, null, nodes.e, nodes.f
],
{before: nodes.k}
);
compare(newState.filter(notNull), 'acef');
*/
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
g
,
nodes
.
h
,
nodes
.
i
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'cdeghi'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
,
nodes
.
g
,
nodes
.
h
,
nodes
.
i
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abcdefghi'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
b
,
nodes
.
a
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
,
nodes
.
g
,
nodes
.
i
,
nodes
.
h
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'bacdefgih'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
''
)
;
// https://github.com/snabbdom/snabbdom/blob/master/test/core.js
tressa
.
log
(
'## snabbdom - updating children'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'a'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abc'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
d
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'de'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abcde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
d
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abcde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
b
,
nodes
.
c
,
nodes
.
d
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'bcd'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abcde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
''
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abc'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
document
.
createTextNode
(
'b'
)
,
nodes
.
c
]
,
{
before
:
nodes
.
k
}
)
;
assert
(
newState
[
1
]
!==
nodes
.
b
&&
newState
.
length
===
3
&&
newState
[
0
]
===
nodes
.
a
&&
newState
[
2
]
===
nodes
.
c
,
'replace one child'
)
;
tressa
.
log
(
'## snabbdom - removal of elements'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abcde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'cde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abcde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abc'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abcde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
d
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abde'
)
;
tressa
.
log
(
'## snabbdom - element reordering'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abcd'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
b
,
nodes
.
c
,
nodes
.
a
,
nodes
.
d
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'bcad'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abc'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
b
,
nodes
.
c
,
nodes
.
a
,
nodes
.
d
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'bcad'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
c
,
nodes
.
b
,
nodes
.
d
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'cbd'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abc'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
b
,
nodes
.
c
,
nodes
.
a
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'bca'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abcd'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
d
,
nodes
.
b
,
nodes
.
c
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'adbc'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
d
,
nodes
.
b
,
nodes
.
c
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'adbc'
)
;
tressa
.
log
(
'## snabbdom - combination'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abcde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
d
,
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
f
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'dabcf'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
d
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'ade'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
d
,
nodes
.
f
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'df'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
b
,
nodes
.
d
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'bde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
d
,
nodes
.
e
,
nodes
.
c
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'dec'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
j
,
nodes
.
a
,
nodes
.
b
,
nodes
.
c
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'jabc'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
d
,
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
j
,
nodes
.
e
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'dabcje'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
,
nodes
.
g
,
nodes
.
h
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abcdefgh'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
,
nodes
.
g
,
nodes
.
h
]
.
reverse
(
)
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'hgfedcba'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abcdef'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
e
,
nodes
.
d
,
nodes
.
c
,
nodes
.
b
,
nodes
.
f
,
nodes
.
a
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'edcbfa'
)
;
tressa
.
log
(
'## snabbdom - random values'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abcdef'
)
;
/*
newState = domdiff(
document.body,
newState,
[null, nodes.c, undefined, null, nodes.b, nodes.a, null, nodes.f, nodes.e, null, nodes.d, undefined],
{before: nodes.k}
);
compare(newState.filter(notNull), 'cbafed');
*/
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
]
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'abcdef'
)
;
/*
newState = domdiff(
document.body,
newState,
[null, null, undefined, null, null, undefined],
{before: nodes.k}
);
compare(newState.filter(notNull), '');
*/
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
,
nodes
.
f
]
.
reverse
(
)
,
{
before
:
nodes
.
k
}
)
;
compare
(
newState
,
'fedcba'
)
;
clean
(
)
;
tressa
.
log
(
'## snabbdom - updating children (unpinned)'
)
;
newState
=
domdiff
(
document
.
body
,
[
]
,
[
nodes
.
a
]
)
;
compare
(
newState
,
'a'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
]
)
;
compare
(
newState
,
'abc'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
d
,
nodes
.
e
]
)
;
compare
(
newState
,
'de'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
)
;
compare
(
newState
,
'abcde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
d
,
nodes
.
e
]
)
;
compare
(
newState
,
'abde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
)
;
compare
(
newState
,
'abcde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
b
,
nodes
.
c
,
nodes
.
d
]
)
;
compare
(
newState
,
'bcd'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
)
;
compare
(
newState
,
'abcde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
]
)
;
compare
(
newState
,
''
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
]
)
;
compare
(
newState
,
'abc'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
document
.
createTextNode
(
'b'
)
,
nodes
.
c
]
)
;
assert
(
newState
[
1
]
!==
nodes
.
b
&&
newState
.
length
===
3
&&
newState
[
0
]
===
nodes
.
a
&&
newState
[
2
]
===
nodes
.
c
,
'replace one child'
)
;
tressa
.
log
(
'## snabbdom - removal of elements (unpinned)'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
)
;
compare
(
newState
,
'abcde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
)
;
compare
(
newState
,
'cde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
)
;
compare
(
newState
,
'abcde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
]
)
;
compare
(
newState
,
'abc'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
,
nodes
.
e
]
)
;
compare
(
newState
,
'abcde'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
d
,
nodes
.
e
]
)
;
compare
(
newState
,
'abde'
)
;
tressa
.
log
(
'## snabbdom - element reordering (unpinned)'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
]
)
;
compare
(
newState
,
'abcd'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
b
,
nodes
.
c
,
nodes
.
a
,
nodes
.
d
]
)
;
compare
(
newState
,
'bcad'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
]
)
;
compare
(
newState
,
'abc'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
b
,
nodes
.
c
,
nodes
.
a
]
)
;
compare
(
newState
,
'bca'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
b
,
nodes
.
c
,
nodes
.
d
]
)
;
compare
(
newState
,
'abcd'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
d
,
nodes
.
b
,
nodes
.
c
]
)
;
compare
(
newState
,
'adbc'
)
;
newState
=
domdiff
(
document
.
body
,
newState
,
[
nodes
.
a
,
nodes
.
d
,
nodes
.
b
,
nodes
.
c
]
)
;
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