Optional chaining is a process for querying and calling properties, methods, and subscripts on an optional that might currently be nil/null . If the optional contains a value, the property, method, or subscript call succeeds; if the optional is nil/null , the property, method, or subscript call returns nil/null.
I'm trying to use optional chaining with an array instead of an object but not sure how to do that: …
javascript arrays typescript function optional-chainingLooks like optional chaining has landed. Here's an example What I can't figure out is how to get TS to …
typescript optional-chainingTypeScript 3.7 now supports the optional chaining operator. Hence, you can write code such as: const value = a?.b?.c; I.…
javascript typescript optional-chainingIn my project I am using TS 3.7.2 which should support optional chaining. But when I try to use it like …
typescript tsconfig optional-chainingScenario: We're using webpack 4 to create a bundle from our Javascript sources. We're not using Babel because we're authoring only …
javascript webpack optional-chainingMy problem is a general one, how to chain a series of attribute lookups when one of the intermediate ones …
python optional-chainingI have a TypeScript interface with some optional fields and a variable of that type: interface Foo { config?: { longFieldName?: string; } } …
javascript typescript optional-chainingI've been programming a lot in Swift recently. Today I did some work in JavaScipt when question popped up to …
javascript optional-chainingI am getting this error when running the android project in react react native. This is fresh install of react …
react-native babeljs optional-chaining