Heterogeneous collection literal in swift

Question

I am trying to read nested array as follows but getting an error.

var inputArray = [1,[4,3],6,[5,[1,0]]] 

func nestedArray(inputArray :[Any])
{

}

error: heterogeneous collection literal could only be inferred to '[Any]'; add explicit type annotation if this is intentional var inputArray = [1,[4,3],6,[5,[1,0]]]

Xcode even offers to insert `as [Any]` – you only have to click on the "Fix" button. — Martin R, Oct 18 '18 at 21:47

score 2 · Accepted Answer · answered Oct 18 '18 at 21:27

2

You need

var inputArray:[Any] = [1,[4,3],6,[5,[1,0]]]

as you specify elements of different types Int , Array and nested Array

answered Oct 18 '18 at 21:27

Shehata Gamal

98,760
8
65
87

How could I able to read an item in this nested Array, like first and second item iteratively? – casillas Oct 18 '18 at 21:32
you need if else or switch cases of castable options like **element as? Int** , or **element as? [Int]** or **element as? [Any]** respectively – Shehata Gamal Oct 18 '18 at 21:34
could you please illustrate with an example, I am trying to flatten this nested Array into a regular array? – casillas Oct 18 '18 at 21:35
look here https://stackoverflow.com/questions/24465281/flatten-a-array-of-arrays-in-swift – Shehata Gamal Oct 18 '18 at 21:37

Heterogeneous collection literal in swift

1 Answers1