All Optional Solutions on Gang of Coders

Total of 54 Optional Solutions

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

Swift2 Optional For in-Loop

Avoid NoSuchElementException with Stream

Java Java 8 Java Stream Optional

Expression implicitly coerced from 'String?' to Any

Swift String Optional

Why use Optional.of over Optional.ofNullable?

Java Java 8 Nullpointerexception Null Optional

Why non optional Any can hold nil?

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

C++C++17 Optional

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

Java Java 8 Optional

What is an optional value in Swift?

Difference between `Optional.orElse()` and `Optional.orElseGet()`

Java Java 8 Optional

Java 8 - Difference between Optional.flatMap and Optional.map

Java Java 8 Optional

Swift: guard let vs if let

Swift Swift2 Optional Conventions Control Flow

Swift optional escaping closure parameter

Swift Function Closures Optional

Swift: Testing optionals for nil

Ios Swift Optional

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

If Statement Swift Optional

Providing a default value for an Optional in Swift?

Check string for nil & empty

Swift String Optional Is Empty

Optional orElse Optional in Java

Java Lambda Java 8 Optional Java 9

Default optional parameter in Swift function

Swift Function Optional

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

Java Java 8 Java Stream Optional

Proper usage of Optional.ifPresent()

Java Lambda Java 8 Optional

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

Java Serialization Java 8 Optional

Why should Java 8's Optional not be used in arguments

Java Java 8 Optional

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

Java Java 8 Java Stream Optional

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

What does an exclamation mark mean in the Swift language?

Swift Optional Forced Unwrapping

Swift: testing against optional value in switch case

Swift Enums Switch Statement 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

Why create "Implicitly Unwrapped Optionals", since that implies you know there's a value?

Swift Design Patterns Optional

Multiple null checks in Java 8

Java Lambda Java 8 Java Stream Optional

Checking the value of an Optional Bool

Swift Boolean Optional

How to execute logic on Optional if not present?

Java Java 8 Optional

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

Swift Optional Downcast Optional Variables

Django modelform NOT required field

Django Django Forms Optional Django Models

Required and Optional Arguments Using Boost Library Program Options

C++Boost Boost Program-Options Required Optional

Monads with Java 8

Java Java 8 Monads Optional

Chaining Optionals in Java 8

Java Lambda Java 8 Optional

Regex optional group

Regex Optional Regex Group

How to add nil value to Swift Dictionary?

Swift Dictionary Null Optional

How to convert an Optional<T> into a Stream<T>?

Java Java 8 Java Stream Optional

Statement lambda can be replaced with expression lambda

Java Spring Spring Mvc Lambda Optional

Java 8 optional: ifPresent return object orElseThrow exception

Java Lambda Optional

Optional return in C#.Net

C#.Net Nullable Optional

What are Some and None?

unwrapping multiple optionals in if statement

How to use Java 8 Optionals, performing an action if all three are present?

Java Java 8 Optional

Should Java 8 getters return optional type?

Java Java 8 Nullable Optional

Uses for Optional

Java Java 8 Optional

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

Java Guava Optional Java 8

How to remove all gesture recognizers from a UIView in Swift

Ios Uiview Swift Uigesturerecognizer Optional

Functional style of Java 8's Optional.ifPresent and if-not-Present?

Java Functional Programming Java 8 Optional

Get value from one Optional or another

Java Java 8 Optional

Usage of where in if let assignment in Swift

Ios Swift Where Optional Swift3

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

Are parameters in strings.xml possible?

Android Dynamic Parameters String Optional