``` for (lookupTask in lookupTasks) { val serverUrl = lookupTask.execute(domain, username, passw...

# getting-started

[ursus]

for (lookupTask in lookupTasks) {
    val serverUrl = lookupTask.execute(domain, username, password)
    if (serverUrl != null) {
        return serverUrl
    }
}
return null

[Pavlo Liapota]

return lookupTasks
	.asSequence()
	.mapNotNull { it.execute(domain, username, password) }
	.firstOrNull()

[ursus]

doesnt really shortcut it, right?

[Alowaniak]

what do you mean with "doesn't really shortcut it"?
It's a sequence so it only does the mapping until it gets the first non null

[ursus]

really? Ill investigate, because im pretty sure normal list.mapNotNull does all the items and skips the null ones

[Alowaniak]

Yes, that's the case with a normal list or w/e.
But that's why @Pavlo Liapota had asSequence().
Because they are a "lazy collection" like java's Stream
See https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.sequences/index.html