contentDeepToString
Returns a string representation of the contents of this array as if it is a List. Nested arrays are treated as lists too.
expect fun <T> Array<out T>.contentDeepToString(): String(source)
fun main() {
val nestedArray = arrayOf(
arrayOf(1, 2),
arrayOf(3, 4, arrayOf(5, 6))
)
println(nestedArray.contentDeepToString())
}