Swift: using .contains on multidimensional array [duplicate]

Question

In swift, I cannot figure out how to check if a multi-dimensional array contains a child array.

var a: [[Int]] = []
a.append([1,2])
a.append([2,2])
a.append([3,2]) #=> [[1,2], [2,2], [3,2]]

a.contains([1,2]) #=> Contextual type '@noescape ([Int]) throws -> Bool' cannot be used with array literal.

I've tried all kinds of combinations and .indexOf and can't get anything to work.

What am I missing?

In your case: a.contains { $0 == [1,2] }. indexOf has also a predicate-based variant: a.indexOf { $0 == [1,2] }. — Martin R
– Martin R, Commented Nov 22, 2015 at 17:29

vacawama · Accepted Answer · 2015-11-22 17:19:35Z

3

You can do this with the predicate form of contains:

a.contains {$0 == [1,2]}

answered Nov 22, 2015 at 17:19

vacawama

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