As of Swift 2.0, you don’t need to write your own extension to filter nil values from an Array, you can use flatMap, which flattens the Array and filters nils:
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let optionals : [String?] = ["a", "b", nil, "d"] let nonOptionals = optionals.flatMap{$0} print(nonOptionals) |
Prints:
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[a, b, d] |