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Swift program to create a function with no argument and no return value

Here, we are going to learn how to create a function with no argument and no return value in Swift programming language?
Submitted by Nidhi, on June 20, 2021

Problem Solution:

Here, we will create a user-defined function that will not accept any argument and it will not return any value.

Program/Source Code:

The source code to create a function with no argument and no return value is given below. The given program is compiled and executed successfully.

// Swift program to create a function
// with no argument and no return value

import Swift

func sayHello() {
    print("Hello World")
}

sayHello()

Output:

Hello World

...Program finished with exit code 0
Press ENTER to exit console.

Explanation:

In the above program, we imported a package Swift to use the print() function using the below statement,

import Swift;

Here, we created a user-defined function sayHello(), which does not accept any argument and does not return any value to the calling function. The sayHello() function will print the "Hello World" message on the console screen.