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dartz.dart
OptionLens<A, B>
modifyO method
modifyO method
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modifyO
method
Option
<
A
>
modifyO
(
A
a
,
Function1
<
B
,
B
>
f
)
Implementation
Option<A> modifyO(A a, Function1<B, B> f) => get(a).bind((b) => set(a, f(b)));
dartz package
documentation
dartz
OptionLens<A, B>
modifyO method
OptionLens class