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import Foundation | |
let a = [1,2,3,4,5] | |
let b = a.flatMap{ (i) -> (Int?) in | |
if i % 2 == 0 { | |
return i | |
} else { | |
return nil | |
} | |
} |
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import XCTest | |
@testable import MyProject | |
class MyProjectTests: XCTestCase { | |
var mainvc: MyProject.ViewController! | |
private func setUpViewControllers() { | |
let storyboard = UIStoryboard(name: "Main", bundle: Bundle.main) | |
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func appender(delimeter:String)->(String)->String { | |
var buffer = "" | |
return { | |
buffer += $0 + delimeter | |
return buffer | |
} | |
} | |
let strings = ["a", "b", "c"] | |
let append = appender(", ") |
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func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { | |
if let location = locations.first { | |
print("Found user's location: \(location)") | |
let session = Session.sharedSession() | |
var parameters = location.parameters() | |
let cat = Constants().categoryID() ?? "" | |
parameters += [Parameter.categoryId:cat] | |
parameters += [Parameter.intent:"browse"] | |
parameters += [Parameter.radius:"800"] |
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typealias closureType = (Int) -> (Int) | |
let ff = { return $0 * 2 } | |
let tt = { return $0 - ff($0) } | |
func ret(idx: Int, closure: closureType) -> NSNumber { | |
return NSNumber(integer: closure(idx)) | |
} |
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let list: [String?] = [nil, nil, "ciao", "hello", nil] | |
struct Obj { | |
var group: [String?]? | |
let name: String? | |
} | |
let o1 = Obj(group: list, name: "first") | |
let o2 = Obj(group: nil, name: "second") |
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let list: [String?] = [nil, nil, "ciao", "hello", nil] | |
list.reduce([String]()) { | |
if let e = $1 { | |
return $0 + [e] | |
} else { | |
return $0 | |
} | |
} |
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