Also, I am pretty sure function parameters cannot ...

# getting-started

[eric]

Also, I am pretty sure function parameters cannot be reassigned.
But, interestingly, parameters can simply be redeclared to be ignored.
Example:

private fun test(foo: Boolean): String? {
    // foo = false // does not compile.
    val foo = false // compiles.
    return if (foo) "hello" else null
}