I have a variable called `dec31_2015` in Java. How should I name that in Kotlin? I get this warnin...

# announcements

[glenkpeterson]

I have a variable called dec31_2015 in Java. How should I name that in Kotlin? I get this warning about the underscore.

[Ryan Smith]

Typically you would used camelCase for identifiers in Java/Kotlin which is why you get the warning. Could go with dec312015, but that is a bit harder to read. For the sake of readability you could ignore the warning, or consider renaming the variable entirely. newYearsEve2015? decThirtyFirst? Just date?

[Roukanken]

maybe lastDec2015 ? If it makes sense in the context

[Casey Brooks]

It’s just a warning, but this seems like an area where the variable name is valid, and would be unreadable to remove the underscore. You could add @Suppress("LocalVariableName") on the function/class with that variable to document that the name not strictly following Kotlin standards is intentional

[Casey Brooks]

As a general rule, I aim to have zero warnings in my build logs. Anytime a warning is logged, I either change it as suggested, or decide that it’s intentional and add an @Suppress annotation to hide the warning. Either way, warnings are useful and shouldn’t simply be ignored

[glenkpeterson]

Thanks! I'm going to add a suppression with the comment, "underscore aids readability of this variable name"

[ephemient]

val `dec㉛2015`

/s

[Shawn]

is this a constant? Maybe it ought to just be DEC_31_2015, following the static final labeling scheme

[Rob Elliot]

It’s tough without knowing more of the context, but it might be worth thinking about what that date represents that makes it a logically important constant rather than what date it is.

For instance val COMPANY_FOUNDING_DATE = "2015-12-31".toLocalDate() captures both that it’s the 31st December 2015 and why that particular date is worth capturing as a constant.