Best Practice: You should use the automatic variable $PSBoundParameters instead of just specifying the variable name.
Explanation:
The automatic variable $PSBoundParameters is a hashtable containing the parameters passed to a script or a function
By using the $PSBoundParameters, you avoid some possible confusion or unexpected behavior, and also make the code clearer.
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function Get-Something { Param ( [switch]$Verbose ) # Bad if ($Verbose) { Do-Something } # Good (Alternative 1) if ($PSBoundParameters['Verbose']) { Do-Something } # Good (Alternative 2) if ($PSBoundParameters.ContainsKey('Verbose')) { Do-Something } # Good (Alternative 3) switch ($PSBoundParameters.Keys) { 'Verbose' { Do-Something } } } |
