C#•4mo ago

✅ what will be the default value of the `params int[] value` if i did not pass it while calling M

what will be the default value of the params int[] value if i did not pass it while calling method , do this will be trated as an empty array of ints

c#

        public static void Sum(int number , int number2,params int[] values)
        {
            Console.WriteLine(number);
            Console.WriteLine(number2);
            Console.WriteLine(values is int[]);
        }

c#

        public static void Sum(int number , int number2,params int[] values)
        {
            Console.WriteLine(number);
            Console.WriteLine(number2);
            Console.WriteLine(values is int[]);
        }

14 Replies

reflectronic•4mo ago

yes, it will pass an empty array

steven preadly•4mo ago

i want to ask another question regarding optional parameter , the below are a way to make parameters optional using method overloading , Is doing it like below a best practice or i should re-implement every thing in the overloaded method

c#
        public static int Sum(int number , int number2) 
        {
            return Sum(number , number2, Array.Empty<int>());
        }


        public static int Sum(int number, int number2 , params int[] values) 
        {



            int Result = number + number2;

            if (values.Length > 0)
            {
                foreach (int i in values)
                {
                    Result = Result + i;
                }
            }

            return Result;
        }

c#
        public static int Sum(int number , int number2) 
        {
            return Sum(number , number2, Array.Empty<int>());
        }


        public static int Sum(int number, int number2 , params int[] values) 
        {



            int Result = number + number2;

            if (values.Length > 0)
            {
                foreach (int i in values)
                {
                    Result = Result + i;
                }
            }

            return Result;
        }

333fred•4mo ago

I would just put params on the second method and remove the first one

steven preadly•4mo ago

yes thats correct but for now i am learning haw can i make it using the method overloading

333fred•4mo ago

Well, but the calling patterns are different You wouldn't be able to write Sum(1, 2, 3) without params

steven preadly•4mo ago

yes of course if i use params it better because i can spred all my numbers easly but on the other i have to pass array

333fred•4mo ago

Unless you add a lot of different overloads

steven preadly•4mo ago

for the first method this is an overloaded version that calls the secound one inside it is that a best practice o i have to re-implement there

333fred•4mo ago

It's often how overloads are implemented, yes

steven preadly•4mo ago

i never used overloading like his i always re-implement the methods but i neve used that technique ,but any way its somthing that is added to my knoladge but i dont thing the re-implimintation is wrong

333fred•4mo ago

It depends. You usually don't want to have multiple copies of the same code Harder to maintain long-term

steven preadly•4mo ago

yes that correct that i cas i want it to be the same correct but if i have diffrent implementations like adding more if condation for checking somthing (this is an example ) then i can re- implement correct?

333fred•4mo ago

I would generally encourage you to not have different implementations Also, just to mention: this isn't a great example to learn overloading on, because you wouldn't use overloading for this method in the real world

steven preadly•4mo ago

i just leanet the basics of overloading usng this example because overloading depend on the application that i am creating i mean i leaned how to overload a method inside a class but implimintations are depends on the application @333fred @reflectronic thank you

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✅ what will be the default value of the `params int[] value` if i did not pass it while calling M