PowerShell - Functions

# Displays Hello World
function displayHello
{
    Write-Host "Hello World"
}
displayHello

# Pass a parameter
function displaySomething
{
    Write-Host $args
}
displaySomething 'Hello Again'

# Working with multiple parameters
function addNumbers
{
    Write-Host ($args[0] + $args[1])
}
# Displays 7
addNumbers 3 4

# Fancier way to work with multiple parameters
function AddNumbersAgain
{
    param( [int]$num1, [int]$num2 )
    write-host ($num1 + $num2)
}
# Displays 9
AddNumbersAgain 4 5