Swift init Array with capacity

Question

How do I initialize an Array in swift with a specific capacity?

I've tried:

var grid = Array <Square> () grid.reserveCapacity(16) 

but get the error

expected declaration  

Answer 1

How about:

class Square {  }  var grid = Array<Square>(count: 16, repeatedValue: Square()); 

Though this will call the constructor for each square.

If you made the array have optional Square instances you could use:

var grid2 = Array<Square?>(count: 16, repeatedValue: nil); 

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EDIT: With Swift3 this initializer signature has changed to the following:

var grid3 = Array<Square>(repeating: Square(), count: 16) 

or

var grid4 = [Square](repeating: Square(), count: 16) 

Of course, both also work with Square? and nil.