``` if (nullableIntOne ?: 0 < nullableList?.siz...

# announcements

[Sudhir Singh Khanger]

if (nullableIntOne ?: 0 < nullableList?.size ?: 0) {
    // some code 1
} else {
    // some code 2
}

I can't compare nullable types. So what is the likelihood of above code breaking. How can I mitigate it?

[Josh Feinberg]

define breaking?

[Sudhir Singh Khanger]

🙂 throwing an exception or neither parts executing.

[gildor]

make it non-nullable %)

[gildor]

Depends on case, but in general you just have to handle this case somehow

[gildor]

If you really have a lot of such cases, you of course can introduce compareTo operator for nullable int:

operator fun Int?.compareTo(other: Int?): Int {
    val a = this ?: 0
    val b = other ?: 0
    return a.compareTo(b) 
}

But I wouldn’t recommend to do that! Because this 0 is not universal default, what should be bigger -1 or null?

[gildor]

one more solution, just introduce private function that compare 2 nullable int, but with some semantics, not just universal comparasion function

[Sudhir Singh Khanger]

Thanks. I will look into the solutions you have suggested.