Use of Boolean? in if expression

Question

If I have a nullable Boolean b, I can do the following comparison in Java:

Boolean b = ...;
if (b != null && b) {
   /* Do something */
         


        

Answer 1

It's pretty easy to add an extension function if that helps you.

fun Boolean?.orDefault(default: Boolean = false): Boolean {
    if (this == null)
        return default
    return this
}

var x: Boolean? = null

if(x.orDefault()) {
..
}