This is an example of a function which returns a string. In the example, the function is called in a statement assigning a value to a variable. The value in this case is the return value of the function.
function Get-Greeting{
"Hello World"
}
# Invoking the function
$greeting = Get-Greeting
# demonstrate output
$greeting
Get-Greeting
function
declares the following code to be a function.
Get-Greeting
is the name of the function. Any time that function needs to be used in the script, the function can be called by means of invoking it by name.
{ ... }
is the script block that is executed by the function.
If the above code is executed in the ISE, the results would be something like:
Hello World
Hello World