indexOf

expect open override fun indexOf(element: @UnsafeVariance E): Int(source)

actual open override fun indexOf(element: E): Int

Returns the index of the first occurrence of the specified element in the list, or -1 if the specified element is not contained in the list.

actual open override fun indexOf(element: E): Int

Returns the index of the first occurrence of the specified element in the list, or -1 if the specified element is not contained in the list.