@[email protected] to Programmer [email protected] • 5 months agoElvisfeddit.itimagemessage-square35fedilinkarrow-up1164arrow-down112
arrow-up1152arrow-down1imageElvisfeddit.it@[email protected] to Programmer [email protected] • 5 months agomessage-square35fedilink
minus-square@[email protected]linkfedilink3•edit-25 months 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-square@[email protected]linkfedilinkEnglish2•5 months agoThe second one isn’t valid syntax in any programming language I’m familiar with. What does it do?
minus-square@[email protected]linkfedilink4•5 months agoIt’s a shorthand for writing this: variable = if (input != null) input else default This is equivalent: variable = input ?: default
minus-square@[email protected]linkfedilinkEnglish2•edit-25 months agoHuh. Neat feature. That’s in C# I assume?
minus-square@[email protected]linkfedilink2•edit-25 months 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.