Get-Average.ps1
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function Get-Average { <# .Synopsis Gets an average .Description Gets an average of a series of numbers .Example Get-Average 2,4,6,8 #> param( # The numbers to average [Parameter(Mandatory=$true,ValueFromPipelineByPropertyName=$true,Position=0)] [Double[]] $Number ) begin { $numberSeries = New-Object Collections.ArrayList } process { $null = $numberSeries.AddRange($number) } end { $scriptBlock = " # Start the total at zero `$total = 0 " foreach ($n in $numberSeries) { $scriptBlock += " # Add $n to the total `$total += $n " } $scriptBlock += " # The average is the total divided by the number of items $($numberSeries.Count) `$average = `$total / $($numberSeries.Count) " $sb= [ScriptBlock]::Create($scriptBlock) $null = . $sb $average } } |