Sleepzy@feddit.it to Programmer Humor@lemmy.ml · 4 days agoElvisfeddit.itimagemessage-square35fedilinkarrow-up1156arrow-down18
arrow-up1148arrow-down1imageElvisfeddit.itSleepzy@feddit.it to Programmer Humor@lemmy.ml · 4 days agomessage-square35fedilink
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up1·edit-21 day 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-up1·12 hours agoThe second one isn’t valid syntax in any programming language I’m familiar with. What does it do?
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up1·11 hours agoIt’s a shorthand for writing this: variable = if (input != null) input else default This is equivalent: variable = input ?: default
minus-squareAVincentInSpace@pawb.sociallinkfedilinkEnglisharrow-up1·edit-211 hours agoHuh. Neat feature.
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up1·edit-23 hours 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.
It’s in Kotlin and some other languages. C# has it but there it’s actually
A ?? B.