chainToOpt ()
chain
To
Opt
<
T
,
U
>
(
f
)
:
(
(
x
)
=>
OptSafe
<
U
>
)
Type Parameters
T
U
Parameters
f
:
(
(
_
)
=>
undefined
|
null
|
U
)
(
_
)
:
undefined
|
null
|
U
Parameters
_
:
T
Returns
undefined
|
null
|
U
Returns
(
(
x
)
=>
OptSafe
<
U
>
)
(
x
)
:
OptSafe
<
U
>
Parameters
x
:
Opt
<
T
>
Returns
OptSafe
<
U
>
See
Opt.chainToOpt
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See
Opt.chainToOpt