What is a parameter C#?

What is a parameter C#?

Parameters are used to pass values or variable references to methods. The parameters of a method get their actual values from the arguments that are specified when the method is invoked. So, “parameters” refer to names, and “arguments” refer to values bound to those names.

How do I get optional parameters in C#?

We can make a parameter optional by assigning default values for that parameter, like:

  1. public static void Sum(int a,int b , int[] n=null)
  2. {
  3. int res=a+b;
  4. if(n!= null)
  5. {
  6. foreach(int no in n)
  7. {
  8. res+=no;

What is default value of int c#?

In this article

Type Default value
Any reference type null
Any built-in integral numeric type 0 (zero)
Any built-in floating-point numeric type 0 (zero)
bool false

Which is the default parameter passing mechanism in C sharp?

In C# by default we pass the parameter by value also known as value parameter. But a parameter also can be passed by reference.

What is the purpose of an argument C#?

In C#, arguments can be passed to parameters either by value or by reference. Passing by reference enables function members, methods, properties, indexers, operators, and constructors to change the value of the parameters and have that change persist in the calling environment.

What is the difference between a parameter and an argument C#?

Note the difference between parameters and arguments: Function parameters are the names listed in the function’s definition. Function arguments are the real values passed to the function. Parameters are initialized to the values of the arguments supplied.