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ainame/string-api-changes.swift

Last active June 6, 2017 17:39
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Is this a bug on the Swift4?
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string-api-changes.swift
import Foundation
let array: [String?] = ["a", "b", "c", "e"]
print(array) // => [Optional("a"), Optional("b"), Optional("c"), Optional("e")]
let strings = array.flatMap { $0! }
print(type(of: strings)) // => Array<Character>
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ainame commented Jun 6, 2017 •
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expected: Array<String>

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ainame commented Jun 6, 2017 

$ swift --version
Apple Swift version 4.0 (swiftlang-900.0.43 clang-900.0.22.8)
Target: x86_64-apple-macosx10.9

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