[Solved] What will this PowerShell function output?function ShowMessage { param([string]$msg = 'Hello') Write-Output $msg }ShowMessage | PowerShell

PowerShell - Functions

What will this PowerShell function output?

function ShowMessage { param([string]$msg = 'Hello') Write-Output $msg }
ShowMessage

AHello

Bmsg

CError: missing argument

Dnull

Step-by-Step Solution

Solution:

Step 1: Check parameter default
Parameter msg defaults to 'Hello'.
Step 2: Function call without argument
Calling ShowMessage without argument uses default 'Hello'.
Final Answer:
Hello -> Option A
Quick Check:
No argument means default used = 'Hello' [OK]

Quick Trick: No argument? Default string prints [OK]

Common Mistakes:

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What will this PowerShell function output?