New posts in optional

How to execute logic on Optional if not present?

java java-8 optional

In Swift, how do I avoid both optionals and nil object references?

ios macos swift optional

Downcasting optionals in Swift: as? Type, or as! Type?

swift optional downcast optional-variables

Checking the value of an Optional Bool

swift boolean optional

Multiple null checks in Java 8

java lambda java-8 java-stream optional

Swift: testing against optional value in switch case

swift enums switch-statement optional

Why does findFirst() throw a NullPointerException if the first element it finds is null?

java java-8 java-stream optional

How to solve "String interpolation produces a debug description for an optional value; did you mean to make this explicit?" in Xcode 8.3 beta?

swift swift3 optional string-interpolation

'Optional.get()' without 'isPresent()' check

java java-8 java-stream optional

Why optional constant does not automatically have a default value of nil [duplicate]

Why java.util.Optional is not Serializable, how to serialize the object with such fields

java serialization java-8 optional

Optional property in class

Proper usage of Optional.ifPresent()

java lambda java-8 optional

Default optional parameter in Swift function

swift function optional

Swift variable decorations with "?" (question mark) and "!" (exclamation mark)

Optional orElse Optional in Java

java lambda java-8 optional java-9

Check string for nil & empty

swift string optional is-empty

Providing a default value for an Optional in Swift?

Swift: Testing optionals for nil

ios swift optional

Using multiple let-as within a if-statement in Swift

if-statement swift optional