darthpelo

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
    }
}

darthpelo

import XCTest
@testable import MyProject

class MyProjectTests: XCTestCase {
    
    var mainvc: MyProject.ViewController!
    
    private func setUpViewControllers() {
        let storyboard = UIStoryboard(name: "Main", bundle: Bundle.main)
        

darthpelo

func appender(delimeter:String)->(String)->String {
    var buffer = ""
    return {
        buffer += $0 + delimeter
        return buffer
    }
}

let strings = ["a", "b", "c"]
let append = appender(", ")

darthpelo

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"]

darthpelo

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))
}

darthpelo

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")

darthpelo

let list: [String?] = [nil, nil, "ciao", "hello", nil]

list.reduce([String]()) {
    if let e = $1 {
        return $0 + [e]
    } else {
        return $0
    }
}