<@U0BHS1Y07> - they are different thing,. To be co...
# random
@voddan - they are different thing,. To be complete you have 3 related constructs 1. extension function private fun Int.Companion.sum(i: Int, i1: Int) = i + i1 Int.sum(1,2) 2. Function (literal) with reciever val sum = fun Int.(other:Int) = this + other sum(1,2) 3. lambda with reciever inline fun buildString(builderAction: StringBuilder.() -> Unit) buildString { append("A") append("B") } //Notice that inside buildString reciever type is StringBuilder, so you can call all it's methods