// // Array+Utils.swift // GraphTest // // Created by Andrei Salavei on 4/7/19. // Copyright © 2019 Andrei Salavei. All rights reserved. // import Foundation #if os(macOS) import Cocoa #else import UIKit #endif extension Array { func safeElement(at index: Int) -> Element? { if index >= 0 && index < count { return self[index] } return nil } }