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Martien van Steenbergen
Wise Fool. Visioneer.
Workspace
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Published
By
Martien van Steenbergen
Edited
Dec 22, 2020
1
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betalingskenmerk
=
(
{
fiscaalnummer
,
subcode
,
jaar
,
frequentie
,
tijdvak
,
}
)
=>
{
// eerste acht cijfers met leidende nullen indien minder dan acht cijfers
const
eersteachtcijfers
=
fiscaalnummer
.
toString
(
)
// converteer getal naar string
.
replaceAll
(
" "
,
""
)
// strip enige spaties
.
slice
(
0
,
8
)
// pak alleen de eerste acht karakters
.
padStart
(
8
,
"0"
)
// voeg leidende nullen toe indien minder dan acht karakters
const
aangifteperiode
=
periodes
[
frequentie
]
// tijdvakcode is precies twee cijfers met leidende nul indien kleiner dan 10
const
tijdvakcode
=
(
aangifteperiode
.
startwaarde
+
+
tijdvak
-
1
)
.
toString
(
)
.
padStart
(
2
,
"0"
)
const
kenmerk
=
(
eersteachtcijfers
+
"6"
// vaste waarde; alleen BD weet waarom
+
jaar
.
toString
(
)
[
3
]
//converteer getal naar string
+
subcode
.
toString
(
)
.
padStart
(
2
,
"0"
)
// getal naar string plus leidende nullen
+
tijdvakcode
+
"0"
)
return
controlegetal
(
kenmerk
)
+
kenmerk
}
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controlegetal
=
kenmerk
=>
{
const
gewicht
=
[
2
,
4
,
8
,
5
,
10
,
9
,
7
,
3
,
6
,
1
]
const
A
=
[
...
kenmerk
]
.
reverse
(
)
.
map
(
(
k
,
i
)
=>
k
*
gewicht
[
i
%
gewicht
.
length
]
)
.
reduce
(
(
som
,
k
)
=>
som
+
k
)
const
B
=
A
%
11
return
B
>
1
?
11
-
B
:
B
===
1
?
1
:
0
// C
}
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periodes
=
(
{
maand
:
{
tijdvakken
:
12
,
startwaarde
:
1
}
,
vierweken
:
{
tijdvakken
:
13
,
startwaarde
:
71
}
,
halfjaar
:
{
tijdvakken
:
2
,
startwaarde
:
31
}
,
jaar
:
{
tijdvakken
:
1
,
startwaarde
:
40
}
,
}
)
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loonheffingsnummer
=
`${
fiscaalnummer
} ${
belastingsoort
} ${
subcode
}`
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subcode
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jaar
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frequentie
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tijdvak
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betalingskenmerk
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controlegetal
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periodes
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belastingsoort
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loonheffingsnummer
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belastingsoorten
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quads
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