In classic Java, it is a common idiom to set up a temp variable to hold some value, populate it in a for loop (often after checking some condition for values to add), and then subsequently return the temp variable: public List<Person> getFilteredUsers(List<Person>…

will the following compile? class Qaz { var bar = "hey" } class Foo(private var qaz: Qaz?) { fun assignBarMkayyy() { if (qaz != null) { qaz.bar = "hey!" } } }…

If you have tried to get external javascript libraries working with Kotlin (when compiling to javascript) it can be somewhat puzzling to get external libraries to work with Kotlin while at the same time being typesafe. Kotlin provides https://kotlinlang.org/docs/reference/dynamic-type.html to work around this, but…

TIL how to implement an anonymous abstract class in Kotlin. This is something you do all the time in Java with Android for example, when an interface calls for a single abstract method implementation. Consider the following Java code for example. abstract class Foobar { abstract String foo(); } Foobar = new Foobar(…