Think of a situation where you want to cast emissions from the Observable to another data type. Passing a lambda just to cast the emissions doesn't seem like a good idea. The cast operator is here to help in this scenario. Let's take a look:
fun main(args: Array<String>) { val list = listOf<MyItemInherit>( MyItemInherit(1), MyItemInherit(2), MyItemInherit(3), MyItemInherit(4), MyItemInherit(5), MyItemInherit(6), MyItemInherit(7), MyItemInherit(8), MyItemInherit(9), MyItemInherit(10) )//(1) list.toObservable()//(2) .map { it as MyItem }//(3) .subscribe { println(it) } println("cast") list.toObservable() .cast(MyItem::class.java)//(4) .subscribe { println(it) } } open class MyItem(val id:Int) {//(5) override ...
