Channel statistics improvements

submodules/GraphCore/Sources/Helpers/Array+Utils.swift

@@ -0,0 +1,23 @@
+//
+//  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
+    }
+}