Array.getAt(index:) - Retrieve an item from an array by index with optional result

Array.swift

public extension Array {

    /// Retrieve an item from an array by index with optional result
    /// - parameter index: Index of the item to be retrieved
    /// - returns: an item by index
    public func getAt(index index: Int) -> Element? {
        if count > index {
            return self[index]
        }
        return nil
    }

}