Apache Arrow - v21.1.0
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Field
Class Field<T>
Type Parameters
T
extends
DataType
=
any
Index
Constructors
constructor
Properties
[k
Field
Symbol]
metadata
name
nullable
type
Accessors
[to
String
Tag]
type
Id
Methods
clone
to
String
is
Field
new
Constructors
constructor
new
Field
<
T
extends
DataType
<
Type
,
any
>
=
any
>
(
name
:
string
,
type
:
T
,
nullable
?:
boolean
,
metadata
?:
Map
<
string
,
string
>
|
null
,
)
:
Field
<
T
>
Type Parameters
T
extends
DataType
<
Type
,
any
>
=
any
Parameters
name
:
string
type
:
T
nullable
:
boolean
= false
Optional
metadata
:
Map
<
string
,
string
>
|
null
Returns
Field
<
T
>
Properties
Readonly
Internal
[k
Field
Symbol]
"[kFieldSymbol]"
:
true
Readonly
metadata
metadata
:
Map
<
string
,
string
>
Readonly
name
name
:
string
Readonly
nullable
nullable
:
boolean
Readonly
type
type
:
T
Accessors
[to
String
Tag]
get
"[toStringTag]"
()
:
string
Returns
string
type
Id
get
typeId
()
:
Type
Returns
Type
Methods
clone
clone
<
R
extends
DataType
<
Type
,
any
>
=
T
>
(
props
:
{
metadata
?:
Map
<
string
,
string
>
|
null
;
name
?:
string
|
number
;
nullable
?:
boolean
;
type
?:
R
;
}
,
)
:
Field
<
R
>
Type Parameters
R
extends
DataType
<
Type
,
any
>
=
T
Parameters
props
:
{
metadata
?:
Map
<
string
,
string
>
|
null
;
name
?:
string
|
number
;
nullable
?:
boolean
;
type
?:
R
;
}
Returns
Field
<
R
>
clone
<
R
extends
DataType
<
Type
,
any
>
=
T
>
(
name
?:
string
|
number
|
Field
<
T
>
,
type
?:
R
,
nullable
?:
boolean
,
metadata
?:
Map
<
string
,
string
>
|
null
,
)
:
Field
<
R
>
Type Parameters
R
extends
DataType
<
Type
,
any
>
=
T
Parameters
Optional
name
:
string
|
number
|
Field
<
T
>
Optional
type
:
R
Optional
nullable
:
boolean
Optional
metadata
:
Map
<
string
,
string
>
|
null
Returns
Field
<
R
>
to
String
toString
()
:
string
Returns
string
Static
is
Field
isField
(
x
:
any
)
:
x
is
Field
<
any
>
Parameters
x
:
any
Returns
x
is
Field
<
any
>
Nocollapse
Static
new
new
<
T
extends
DataType
<
Type
,
any
>
=
any
>
(
props
:
{
metadata
?:
Map
<
string
,
string
>
|
null
;
name
:
string
|
number
;
nullable
?:
boolean
;
type
:
T
;
}
,
)
:
Field
<
T
>
Type Parameters
T
extends
DataType
<
Type
,
any
>
=
any
Parameters
props
:
{
metadata
?:
Map
<
string
,
string
>
|
null
;
name
:
string
|
number
;
nullable
?:
boolean
;
type
:
T
;
}
Returns
Field
<
T
>
new
<
T
extends
DataType
<
Type
,
any
>
=
any
>
(
name
:
string
|
number
|
Field
<
T
>
,
type
:
T
,
nullable
?:
boolean
,
metadata
?:
Map
<
string
,
string
>
|
null
,
)
:
Field
<
T
>
Type Parameters
T
extends
DataType
<
Type
,
any
>
=
any
Parameters
name
:
string
|
number
|
Field
<
T
>
type
:
T
Optional
nullable
:
boolean
Optional
metadata
:
Map
<
string
,
string
>
|
null
Returns
Field
<
T
>
Settings
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OS
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On This Page
Constructors
constructor
Properties
[k
Field
Symbol]
metadata
name
nullable
type
Accessors
[to
String
Tag]
type
Id
Methods
clone
to
String
is
Field
new
Apache Arrow - v21.1.0
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