PowerShellCookbook

1.3.3

LibraryInputComparison.ps1

## From Windows PowerShell Cookbook (O'Reilly)
## by Lee Holmes (http://www.leeholmes.com/guide)

Set-StrictMode -Version 3

## Process each element in the pipeline, using a
## foreach statement to visit each element in $input
function Get-InputWithForeach($identifier)
{
    Write-Host "Beginning InputWithForeach (ID: $identifier)"

    foreach($element in $input)
    {
        Write-Host "Processing element $element (ID: $identifier)"
        $element
    }

    Write-Host "Ending InputWithForeach (ID: $identifier)"
}

## Process each element in the pipeline, using the
## cmdlet-style keywords to visit each element in $input
function Get-InputWithKeyword($identifier)
{
    begin
    {
        Write-Host "Beginning InputWithKeyword (ID: $identifier)"
    }

    process
    {
        Write-Host "Processing element $_ (ID: $identifier)"
        $_
    }

    end
    {
        Write-Host "Ending InputWithKeyword (ID: $identifier)"
    }
}