Sleepzy@feddit.it to Programmer Humor@lemmy.ml · 2 years agoElvisfeddit.itimagemessage-square34linkfedilinkarrow-up1166arrow-down111
arrow-up1155arrow-down1imageElvisfeddit.itSleepzy@feddit.it to Programmer Humor@lemmy.ml · 2 years agomessage-square34linkfedilink
minus-squareAVincentInSpace@pawb.socialBanned from communitylinkfedilinkEnglisharrow-up3·2 years agowhy would you call it anything other than the ternary operator
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up3·edit-22 years agoBecause it’s not one. Ternary operator is A ? B : C, Elvis operator is A ?: B. The same two characters are involved, but both the syntax and effect is different.
minus-squareAVincentInSpace@pawb.socialBanned from communitylinkfedilinkEnglisharrow-up2·2 years agoThe second one isn’t valid syntax in any programming language I’m familiar with. What does it do?
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up4·2 years agoIt’s a shorthand for writing this: variable = if (input != null) input else default This is equivalent: variable = input ?: default
minus-squareAVincentInSpace@pawb.socialBanned from communitylinkfedilinkEnglisharrow-up2·edit-22 years agoHuh. Neat feature. That’s in C# I assume?
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up2·edit-22 years agoIt’s in Kotlin and some other languages. C# has it but there it’s actually A ?? B.
minus-squareQuazarOmega@lemy.lollinkfedilinkarrow-up2·2 years agoRead further down on my other comment to understand, it’s just how the operator looks
why would you call it anything other than the ternary operator
Because it’s not one. Ternary operator is A ? B : C, Elvis operator is A ?: B. The same two characters are involved, but both the syntax and effect is different.
The second one isn’t valid syntax in any programming language I’m familiar with. What does it do?
It’s a shorthand for writing this:
variable = if (input != null) input else defaultThis is equivalent:
variable = input ?: defaultHuh. Neat feature. That’s in C# I assume?
It’s in Kotlin and some other languages. C# has it but there it’s actually
A ?? B.Read further down on my other comment to understand, it’s just how the operator looks