How to call a function in powershell?

To call a function in PowerShell, first, you have to declare the function using the function keyword. Then to call the function, just type and enter the function name.

//example
 
function functionName { 
$args[0] - $args[1] 
} 
PSC:\>functionName 10 5 5 

You can also pass arguments to the called function as you see in the example above.