Function is a block of code that has a signature. Function is used to execute statements specified in the code block. A function consists of the following components:
Function name: It is a unique name that is used to make Function call.
Return type: It is used to specify the data type of function return value.
Body: It is a block that contains executable statements.
Access specifier: It is used to specify function accessibility in the application.
Parameters: It is a list of arguments that we can pass to the function during call.
C# Function Syntax
Access-specifier, parameters and return statement are optional.
Let's see an example in which we have created a function that returns a string value and takes a string parameter.
C# Function: using no parameter and return type
A function that does not return any value specifies void type as a return type. In the following example, a function is created without return type.
This is non parameterized function
C# Function: using parameter but no return type
Hello Rahul Kumar
A function can have zero or any number of parameters to get data. In the following example, a function is created without parameters. A function without parameter is also known as non-parameterized function.
C# Function: using parameter and return type
Inside Show Function Hello Rahul Kumar