Swift init Array with capacity

Question

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

I\'ve tried:

var grid = Array  ()
grid.reserveCapacity(16)

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Answer 1

How about:

class Square {

}

var grid = Array(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(count: 16, repeatedValue: nil);

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

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

or

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

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