proxy-undefined
Return default value for object properties that does not exists i.e is undefined.
Return default value for object properties that does not exists i.e is undefined.
JS access apis fail safe proxy wrapper, for object properties that does not exists i.e is undefined
Add java-like optional functionality to your application
为js提供的类似Java实现的Optional库
Functional "Optionals" solution for JavaScript and TypeScript with async support
A Declarative way to deal with null , undefined and promises via optional and streams