@Sleepzy@feddit.it to Programmer Humor@lemmy.ml • 6 months agoElvisfeddit.itimagemessage-square32fedilinkarrow-up11arrow-down10
arrow-up11arrow-down1imageElvisfeddit.it@Sleepzy@feddit.it to Programmer Humor@lemmy.ml • 6 months agomessage-square32fedilink
minus-square@QuazarOmega@lemy.lollinkfedilink0•6 months agoOn the left you have Elvis Presley, while on the right there’s the so-called Elvis operator
minus-square@AVincentInSpace@pawb.sociallinkfedilinkEnglish0•6 months agowhy would you call it anything other than the ternary operator
minus-square@dev_null@lemmy.mllinkfedilink0•edit-26 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@AVincentInSpace@pawb.sociallinkfedilinkEnglish0•6 months agoThe second one isn’t valid syntax in any programming language I’m familiar with. What does it do?
minus-square@dev_null@lemmy.mllinkfedilink0•6 months agoIt’s a shorthand for writing this: variable = if (input != null) input else default This is equivalent: variable = input ?: default
minus-square@AVincentInSpace@pawb.sociallinkfedilinkEnglish0•edit-26 months agoHuh. Neat feature. That’s in C# I assume?
minus-square@dev_null@lemmy.mllinkfedilink0•edit-26 months agoIt’s in Kotlin and some other languages. C# has it but there it’s actually A ?? B.
minus-square@QuazarOmega@lemy.lollinkfedilink0•6 months agoRead further down on my other comment to understand, it’s just how the operator looks
minus-squareThe CuuuuubelinkfedilinkEnglish0•6 months agobeen programming since 2008. the fuck is an elvis operator?
minus-square@dev_null@lemmy.mllinkfedilink0•edit-26 months agoIt’s a shorthand for writing this: variable = if (input != null) input else default This is equivalent: variable = input ?: default The answers confusing it with the ternary operator are wrong.
minus-squareThe CuuuuubelinkfedilinkEnglish0•6 months agogotacha. i’ve only ever heard them called ternaries. maybe i’m old. maybe i’m too young. definitely one of the two
minus-square@QuazarOmega@lemy.lollinkfedilink0•6 months agoIt specifically refers to this shorthand ?: that works like this: $value = $thing_that_could_be_truthy ?: 'fallback value'; # same as $value = $thing_that_could_be_truthy ? $thing_that_could_be_truthy : 'fallback value'; The condition is also the value if it is truthy
minus-squareJerkface (any/all)linkfedilinkEnglish0•6 months agoBeen programming since the 80s, ditto.
On the left you have Elvis Presley, while on the right there’s the so-called Elvis operator
why would you call it anything other than the ternary operator
Because it’s not one. Ternary operator is A ? B : C, Elvis operator is A ?: B. The same two characters are involved, but both the syntax and effect is different.
The second one isn’t valid syntax in any programming language I’m familiar with. What does it do?
It’s a shorthand for writing this:
variable = if (input != null) input else defaultThis is equivalent:
variable = input ?: defaultHuh. Neat feature. That’s in C# I assume?
It’s in Kotlin and some other languages. C# has it but there it’s actually
A ?? B.Read further down on my other comment to understand, it’s just how the operator looks
been programming since 2008. the fuck is an elvis operator?
It’s a shorthand for writing this:
variable = if (input != null) input else defaultThis is equivalent:
variable = input ?: defaultThe answers confusing it with the ternary operator are wrong.
Ternary if?then:else
gotacha. i’ve only ever heard them called ternaries. maybe i’m old. maybe i’m too young. definitely one of the two
It specifically refers to this shorthand
?:that works like this:$value = $thing_that_could_be_truthy ?: 'fallback value'; # same as $value = $thing_that_could_be_truthy ? $thing_that_could_be_truthy : 'fallback value';The condition is also the value if it is truthy
Been programming since the 80s, ditto.