Hi Everyone! This is my first time emailing the swift evolution list, so if this topic has already been discussed please let me know. I looked through all the accepted and rejected proposals and it doesn't seem to be on there.
The main thought is that dictionaries return optionals, so why not arrays? Or other CollectionTypes for that matter. I would think this would be the expected behavior in this situation: var myArray:[String?] = [] print(myArray[4]) // EXC_BAD_INSTRUCTION, but could just be Optional(nil) Then you could do things like if let arrayValue = myArray[4] { // do something } Of course you could simply check with with the count, but considering Swift's use of optionals to represent empty variables rather than erroring out or returning an empty String, I think this functionality would be appropriate to include in the Swift standard library. And there's about 15,000 people who've looked for this functionality in the last year: http://stackoverflow.com/questions/25329186/safe-bounds-checked-array-lookup-in-swift-through-optional-bindings . Please let me know what you think. Best, Rob Norback
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