There are 2 repositories under optional topic.
Descriptions of C++17 features, presented mostly in "Tony Tables" (hey, the name wasn't my idea)
optional lite - A C++17-like optional, a nullable object for C++98, C++11 and later in a single-file header-only library
Monad, Functional Programming features for Golang
Either and Maybe monads for better error-handling in C++ ↔️
Simple blog web app made using Spring Boot + Thymeleaf
(experimental) Syntactic sugar for variant and optional types.
A library that provides Go Generics friendly "optional" features.
Refit based web api client management, but resilient (retry, connectivity, cache, auth, log, priority, etc...)
Optional (like Java) implementation in TypeScript
Monad/MonadIO, Handler, Coroutine/doNotation, Functional Programming features for Rust
Replacement for std::optional that does not waste memory unnecessarily
JsonNullable wrapper class and Jackson module to support meaningful null values
Library of backported modern C++ types to work with C++11
✍️ No "Optional(...)" in string interpolation + Easy pluralization
Demo project illustrating new features of Java after the 8th version
Matchers for JDK 8 Optional
Functional Programming for EcmaScript(Javascript)
A simple and ergonomic optional type for Go.
Rust like result and option implementation for golang
Port Optional to java 6 as faithfully as possible while maintaining easy migration
Kotlin Options with functional operators
pretty_print is a cross-platform library for a pretty print of various data.
optional bare - A simple version of a C++17-like optional for default-constructible, copyable types, for C++98 and later in a single-file header-only library
🌯 The prettiest TypeScript implementation of Maybe monad.
A tool/script for batch speech data enhancement with speed/volume/RIRS/MUSAN