Sleepzy@feddit.it to Programmer Humor@lemmy.ml · il y a 1 anElvisfeddit.itimagemessage-square34linkfedilinkarrow-up1163arrow-down111
arrow-up1152arrow-down1imageElvisfeddit.itSleepzy@feddit.it to Programmer Humor@lemmy.ml · il y a 1 anmessage-square34linkfedilink
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up3·il y a 1 anBecause 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·il y a 1 anThe second one isn’t valid syntax in any programming language I’m familiar with. What does it do?
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up4·il y a 1 anIt’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·il y a 1 anHuh. Neat feature. That’s in C# I assume?
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up2·il y a 1 anIt’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.