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stl
stl.dart
Optional
<
T
>
Optional.of factory constructor
Optional.of
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Optional<
T
>.of
constructor
Optional<
T
>.of
(
T
value
)
Creates an
Optional
containing
value
.
Implementation
factory Optional.of(T value) = Some<T>;
stl
stl
Optional
<
T
>
Optional.of factory constructor
Optional class