Anton Agarunov Agarunov
Agarunov
/ swift_4_1_whats_new_recursive+conformance.swift
Last active
April 3, 2018 16:33
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| protocol Sequence { | |
| associatedtype SubSequence: Sequence | |
| where Iterator.Element == SubSequence.Iterator.Element, SubSequence.SubSequence == SubSequence | |
| // code | |
| } |
Agarunov
/ swift_4_1_whats_new_conditional_conformance_json.swift
Created
April 3, 2018 06:54
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| struct Pet { | |
| let name: String | |
| } | |
| let pets = [Pet(name: "Beethoven")] | |
| let encoder = JSONEncoder() | |
| try! encoder.encode(pets) |
Agarunov
/ swift_4_1_conditional_conformance_array_of_optionals.swift
Last active
April 3, 2018 07:15
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| let array1: [String?] = ["Jon", "Snow", nil] | |
| let array2: [String?] = ["Winter", "is", "coming", "!", nil] | |
| array1 == array2 // false |
Agarunov
/ swift_4_1_whats_new_coditional_conformance.swift
Last active
April 3, 2018 07:15
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| extension Array: Equatable where Element: Equatable { | |
| static func ==(lhs: Array<Element>, rhs: Array<Element>) -> Bool { | |
| // do stuff | |
| } | |
| } |
Agarunov
/ swift_4_1_whats_new_json_snake_case.swift
Created
April 3, 2018 06:12
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| struct Person: Codable { | |
| let firstName: String | |
| let lastName: String | |
| } | |
| let jsonData = """ | |
| { | |
| "first_name": "John", | |
| "last_name": "Watson" | |
| } |
Agarunov
/ swift_4_1_whats_new_keypaths_subscripts.swift
Last active
April 3, 2018 16:36
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| let string = "Hello, World!" | |
| let keyPath = \String.[string.startIndex] | |
| string[keyPath: keyPath] |
Agarunov
/ swift_4_1_whats_new_compact_map.swift
Last active
April 3, 2018 16:35
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| let friends = ["Ross", nil, "Joey", "Chandler"] | |
| // Swift 4.0 | |
| let array1 = friends.flatMap { $0 } // ["Ross", "Joey", "Chandler"] | |
| // Swift 4.1 | |
| let array2 = friends.compactMap { $0 } // ["Ross", "Joey", "Chandler"] |
Agarunov
/ swift_4_1_whats_new_simulator.swift
Created
April 2, 2018 21:19
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| // Swift 4.1 | |
| #if targetEnvironment(simulator) | |
| // Simulator! | |
| #endif | |
| // Swift 4.0 | |
| #if (arch(i386) || arch(x86_64)) && os(iOS) | |
| // Simulator! | |
| #else | |
| // Device! |
Agarunov
/ swift_4_1_whats_new_canimport.swift
Last active
April 3, 2018 16:34
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| #if canImport(UIKit) | |
| // UIKit is available! | |
| import UIKit | |
| #endif |
Agarunov
/ swift_4_1_whats_new_struct_init_crossmodule.swift
Created
April 2, 2018 21:02
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| // Declared inside framework | |
| struct Point: Hashable { | |
| let x: Float | |
| let y: Float | |
| init(x: Float, y: Float) { | |
| self.x = x | |
| self.y = y | |
| } | |
| } |
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