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type-guard-helpers
type-guard-helpers
isNull
Function isNull
is
Null
<
Value
,
Result
>
(
value
:
Value
)
:
value
is
Combine
<
Value
,
Result
>
A Type Guard that checks if the given value is equal to null
Type Parameters
Value
extends
unknown
Result
extends
null
=
null
Parameters
value:
Value
Returns
value
is
Combine
<
Value
,
Result
>
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Negate
Guard
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Negate
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Negate
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Type
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exclude
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exclude
Null
exclude
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exclude
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filter
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filter
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Nullable
guard
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guard
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guard
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guard
Array
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guard
Either
guard
Either
In
guard
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Array
guard
Non
Empty
Array
Values
guard
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guard
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hook
Guard
is
Array
is
Empty
Array
is
False
is
Non
Empty
Array
is
Non
Nullable
is
Null
is
Nullable
is
Object
is
Partial
is
Property
Key
is
Record
is
True
is
Type
Boolean
is
Type
Function
is
Type
Number
is
Type
Object
is
Type
String
is
Type
Symbol
is
Type
Undefined
is
Undefined
log
Guard
match
match
Array
match
Boolean
match
Boolean
In
match
Booleans
match
Exact
Schema
match
In
match
Number
match
Number
In
match
Numbers
match
Partial
Schema
match
Primitive
match
Property
Key
match
Property
Key
In
match
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Keys
match
Schema
match
String
match
String
In
match
Strings
match
Symbol
match
Type
match
Type
In
match
Types
matches
negate
Guard
negate
Iterable
Guard
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A Type Guard that checks if the given value is equal to null