Public/Common/Use-Value.ps1
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function Use-Value { <# .SYNOPSIS Returns the first non-empty value. .DESCRIPTION Returns the first non-empty value. If both values are empty, returns null. .PARAMETER ValueA First value to check. .PARAMETER ValueB Second value to check. #> [CmdletBinding(DefaultParameterSetName = 'Parameters')] param( [Parameter(ParameterSetName = 'PipeLine', Mandatory, ValueFromPipeline)] [Parameter(ParameterSetName = 'Parameters', Mandatory)] [AllowNull()] [AllowEmptyString()] [AllowEmptyCollection()] [Alias('A','InputObject')] $ValueA, [Parameter(ParameterSetName = 'PipeLine', Mandatory, Position = 0)] [Parameter(ParameterSetName = 'Parameters', Mandatory)] [AllowNull()] [AllowEmptyString()] [AllowEmptyCollection()] [Alias('B')] $ValueB ) process { if ($ValueA) { return $ValueA } return $ValueB } } |