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Parameter Types in Powershell

  • Artigo

In my previous posts I used "-AsJob" parameter to determine if function will be called as a background Powershell job or not. I declared "$AsJob" object as [bool] so one should type explicitly "-AsJob $true" or "-AsJob $false" to make it run. I was trying to figure out a way to get rid of unnecessary $true/$false typings and I encountered with the sites in references. So I learnt what I was searching for; it's called "switch parameter"

For example "Test-FileSizeUntil" function had the following parameter declaration; $AsJob is [bool] -> BAD IDEA :)

[Parameter(mandatory=$false)]
[bool]$AsJob=$false

it should be:

[Parameter(mandatory=$false)]
[switch]$AsJob

Check the references for more info..

Reference#1: https://devcentral.f5.com/weblogs/Joe/archive/2009/01/13/powershell-abcs---p-is-for-parameters.aspx

Reference#2: https://msgoodies.blogspot.com/2006/12/negating-powershell-switch-parameters.html

 Cheers, CanD