Created
March 9, 2015 03:30
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| extension Array{ | |
| func indexInbound (index: Int) -> Bool{ | |
| if 0 <= index && index < count { | |
| return true | |
| } else { | |
| return false | |
| } | |
| } | |
| } | |
| let b = a.indexInbound(2) ? a[2] : -1 | |
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