Hi. I'd like to check whether

null

property is exists in data class. Should I check for each property like as below? Or there is other good way?

data class Book(val name: String?, val author: String?, val price: Int?)

fun isExistNull(): Boolean {
    if (name == null || author == null || price == null) {
        return true
    }
    return false
}

return (name == null || author == null || price == null)

is sufficient. But other than that, yes, it’s the straightforward way to do it.

name ?: author ?: price ?: true == true

should also work