Sleepzy@feddit.it to Programmer Humor@lemmy.ml · 1 month agoElvisfeddit.itexternal-linkmessage-square35fedilinkarrow-up1161arrow-down110
arrow-up1151arrow-down1external-linkElvisfeddit.itSleepzy@feddit.it to Programmer Humor@lemmy.ml · 1 month agomessage-square35fedilink
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up3·edit-21 month 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.sociallinkfedilinkEnglisharrow-up2·1 month agoThe second one isn’t valid syntax in any programming language I’m familiar with. What does it do?
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up4·1 month agoIt’s a shorthand for writing this: variable = if (input != null) input else default This is equivalent: variable = input ?: default
minus-squareAVincentInSpace@pawb.sociallinkfedilinkEnglisharrow-up2·edit-21 month agoHuh. Neat feature. That’s in C# I assume?
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up2·edit-21 month agoIt’s in Kotlin and some other languages. C# has it but there it’s actually A ?? B.
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.