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[-] AVincentInSpace@pawb.social 3 points 2 days ago

why would you call it anything other than the ternary operator

[-] dev_null@lemmy.ml 2 points 1 day ago* (last edited 1 day ago)

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.

[-] AVincentInSpace@pawb.social 2 points 1 day ago

The second one isn't valid syntax in any programming language I'm familiar with. What does it do?

[-] dev_null@lemmy.ml 2 points 1 day ago

It's a shorthand for writing this:

variable = if (input != null) input else default

This is equivalent:

variable = input ?: default
[-] AVincentInSpace@pawb.social 2 points 1 day ago* (last edited 1 day ago)
[-] dev_null@lemmy.ml 2 points 18 hours ago* (last edited 18 hours ago)

It's in Kotlin and some other languages. C# has it but there it's actually A ?? B.

[-] QuazarOmega@lemy.lol 2 points 2 days ago

Read further down on my other comment to understand, it's just how the operator looks

this post was submitted on 17 Nov 2024
142 points (100.0% liked)

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