Sleepzy@feddit.it to Programmer Humor@lemmy.ml · 7 days agoElvisfeddit.itimagemessage-square14fedilinkarrow-up12arrow-down10
arrow-up12arrow-down1imageElvisfeddit.itSleepzy@feddit.it to Programmer Humor@lemmy.ml · 7 days agomessage-square14fedilink
minus-squareQuazarOmega@lemy.lollinkfedilinkarrow-up0·6 days agoOn the left you have Elvis Presley, while on the right there’s the so-called Elvis operator
minus-squareAVincentInSpace@pawb.sociallinkfedilinkEnglisharrow-up0·5 days agowhy would you call it anything other than the ternary operator
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up1·edit-24 days 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-up0·3 days agoThe second one isn’t valid syntax in any programming language I’m familiar with. What does it do?
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up2·3 days agoIt’s a shorthand for writing this: variable = if (input != null) input else default This is equivalent: variable = input ?: default
minus-squareThe Cuuuuube@beehaw.orglinkfedilinkEnglisharrow-up0·6 days agobeen programming since 2008. the fuck is an elvis operator?
minus-squaredev_null@lemmy.mllinkfedilinkarrow-up1·edit-24 days 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 Cuuuuube@beehaw.orglinkfedilinkEnglisharrow-up0·6 days agogotacha. i’ve only ever heard them called ternaries. maybe i’m old. maybe i’m too young. definitely one of the two
minus-squareQuazarOmega@lemy.lollinkfedilinkarrow-up1·6 days 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 ? $thing_that_could_be_truthy : 'fallback value'; The condition is also the value if it is truthy
On the left you have Elvis Presley, while on the right there’s the so-called Elvis operator
why would you call it anything other than the ternary operator
Because it’s not one. Ternary operator is A ? B : C, Elvis operator is A ?: B. The same two characters are involved, but both the syntax and effect is different.
The second one isn’t valid syntax in any programming language I’m familiar with. What does it do?
It’s a shorthand for writing this:
variable = if (input != null) input else defaultThis is equivalent:
variable = input ?: defaultbeen programming since 2008. the fuck is an elvis operator?
It’s a shorthand for writing this:
variable = if (input != null) input else defaultThis is equivalent:
variable = input ?: defaultThe answers confusing it with the ternary operator are wrong.
Ternary if?then:else
gotacha. i’ve only ever heard them called ternaries. maybe i’m old. maybe i’m too young. definitely one of the two
It specifically refers to this shorthand
?:that works like this:$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