New posts in optional

No instance(s) of type variable(s) U exist so that void conforms to U

java functional-programming java-stream optional

What's the most elegant way to combine optionals?

java java-8 optional

Optional.ofNullable and method chaining

java java-8 optional

Assert that Optional has certain value

java unit-testing optional

Make a function accepting an optional to accept a non-optional?

c++ templates c++17 optional template-argument-deduction

std::optional specialization for reference types

c++ c++11 stl optional boost-optional

In Java 8, transform Optional<String> of an empty String in Optional.empty

java java-8 optional

How to determine if a generic is an optional in Swift?

generics swift optional

std::optional - construct empty with {} or std::nullopt?

c++ c++17 optional

Swift optional inout parameters and nil

swift optional

How do you decide whether to return Optional.empty() or Collections.emptyList()?

java list performance optional

Why non optional Any can hold nil?

swift optional

Is it a good practice to use Optional as an attribute in a class? [duplicate]

java java-8 optional

What is a clean way to convert a Result into an Option?

rust optional

Avoid NoSuchElementException with Stream

java java-8 java-stream optional

Expression implicitly coerced from 'String?' to Any [duplicate]

swift string optional

Swift: How to use for-in loop with an optional?

swift2 optional for-in-loop

Usage of where in if let assignment in Swift

ios swift where optional swift3

How to remove all gesture recognizers from a UIView in Swift

ios uiview swift uigesturerecognizer optional

Should I use Java8/Guava Optional for every method that may return null?

java guava optional java-8