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KentarouKanno/AnyObject? ⇒ Int キャスト

Last active September 19, 2015 06:48
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AnyObject? ⇒ Int キャスト
var a: AnyObject? = 1
var c = (a as! NSNumber)
var array = ["a","b","c"]
var b = array[c.integerValue]
//=> b = "b"
var d = array[(a as! NSNumber).integerValue + 1]
//=> d = "c"
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