@[email protected] to Programmer [email protected] • 1 year agoElvisfeddit.itimagemessage-square34fedilinkarrow-up1163arrow-down111
arrow-up1152arrow-down1imageElvisfeddit.it@[email protected] to Programmer [email protected] • 1 year agomessage-square34fedilink
minus-square@[email protected]linkfedilinkEnglish3•1 year agowhy would you call it anything other than the ternary operator
minus-square@[email protected]linkfedilink3•edit-21 year 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•1 year agoThe second one isn’t valid syntax in any programming language I’m familiar with. What does it do?
minus-square@[email protected]linkfedilink4•1 year agoIt’s a shorthand for writing this: variable = if (input != null) input else default This is equivalent: variable = input ?: default
minus-square@[email protected]linkfedilink2•edit-21 year agoIt’s in Kotlin and some other languages. C# has it but there is actually A ?? B.
minus-squareQuazarOmegalinkfedilink2•1 year 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.
It’s in Kotlin and some other languages. C# has it but there is actually
A ?? B.Read further down on my other comment to understand, it’s just how the operator looks