Interesting. I think I saw this in Swift? Or c#? I guess in Python this is where... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		Waterluvian on March 1, 2019 \| parent \| context \| favorite \| on: TypeScript: Vote for Experimental Support of Optio... Interesting. I think I saw this in Swift? Or c#? I guess in Python this is where EAFP comes in. I definitely hate chains of guards to get at a nested property.

kreetx on March 1, 2019 | [–]

In haskell the lens library does this -- it's a useful feature to have.

LocalPCGuy on March 1, 2019 | | [–]

Quite a few language have this feature, and it is a Stage 1 proposal to become a part of the JS spec

tijs on March 1, 2019 | | [–]

https://en.wikipedia.org/wiki/Option_type

mattferderer on March 1, 2019 | [–]

C# has it.

nathanaldensr on March 1, 2019 | [–]

Yep, they're called null conditional operators[1].

[1]: https://docs.microsoft.com/en-us/dotnet/csharp/language-refe...

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact