Getting to know Kotlin!

var flag = false;
if(condition) {
    //do one thing
    flag = true;
}
if(condition2) {
    //do another thing
    flag = true;
}
if(flag)
    save();

What is the right way to do this in Kotlin avoiding the flag approach?

CodePudding user response：

I don't see any clever way to do it concisely in Kotlin, but in most cases I would probably prefer assigning conditions to variables over the flag approach:

val isBlue = ... some condition ...
val hasWings = ... another condition ...

if (isBlue) {
   ...
}
if (hasWings) {
   ...
}
if (isBlue || hasWings) {
   ...
}

Of course, it is a matter of personal taste.

Also, in some cases flag makes more sense. There is save() in your example, so if this flag is something like shouldSaveData and it depends on several conditions where for example the data is mutated, then flag approach makes perfect sense.