PowerShell - leap, raindrops, reverse-string, two-fer

powershell/two-fer/TwoFer.ps1

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+Function Get-TwoFer(){
+    <#
+    .SYNOPSIS
+    "Two-fer" is short for two for one. One for you and one for me.
+    
+    .DESCRIPTION
+    If the given name is "Alice", the result should be "One for Alice, one for me."
+    If no name is given, the result should be "One for you, one for me."
+    
+    .PARAMETER Name
+    The name to use.
+    
+    .EXAMPLE
+    Get-TwoFer
+
+    Will return: One for you, one for me
+
+    .EXAMPLE
+    Get-TwoFer -Name Alice
+    
+    Will return: One for Alice, one for me
+    #>
+    [CmdletBinding()]
+    Param(
+        [Parameter(Mandatory=$false, Position=0)]
+        [string]$Name
+    )
+
+    # if ($Name -eq $null -or $Name.Length -eq 0) { $Name = 'you'}
+    if ([string]::IsNullOrEmpty($Name)) { $Name = 'you' }
+    return "One for $($Name), one for me"
+}