Kotlin Programming Cookbook

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What happens when you create an extension function with a name similar to that of a member function? For example, in the following code, what will happen if we call c.foo()?:

fun main(args: Array<String>) {    var c= C()    c.foo()}class C{    fun foo(){        println("from member")    }}private fun C.foo() {    println("from extension")}

This is the output we get:

 from member

So a member function will win if an extension function with the same name is called.