Convert AnyObject to an Int

Question

I'm trying to convert a anyObject to an Int. Here's my code:

println(currentObject[0])
println(_stdlib_getDemangledTypeName(currentObject[0]))

2
Swift.ImplicitlyUnwrappedOptional<Swift.AnyObject>

I'm trying to convert currentObject[0] to an Int. Here's what I tried:

let num: Int = currentObjec[0] as! Int

When I run the app, I get the following error:

Could not cast value of type '__NSCFString' (0x103c93c50) to 'NSNumber' (0x103535b88)

When I try this: currentObject[0].toInt()

I get an error saying

'AnyObject' does not have a member named 'toInt()'

The only way I'm able to make it work, is to do the following:

let numStr = currentObject[0] as! String
let num: Int = numStr.toInt()!

Is there a simpler way to do it? (Without having to first convert it to a String.)

Answer 1

From the error message

Could not cast value of type '__NSCFString' (0x103c93c50) to 'NSNumber' (0x103535b88)

you can conclude that currentObject[0] is actually an NSString. In that case you can simply convert it with

let numStr = currentObject[0].integerValue

But note that this will crash if the array element is not an NSString.