PowerShell - Functions
You want a function that prints a greeting with a default name 'Friend' but allows a custom name. Which function definition correctly achieves this?
You want a function that prints a greeting with a default name 'Friend' but allows a custom name. Which function definition correctly achieves this?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Identify default parameter usage
function Greet { param([string]$name = 'Friend') Write-Output "Hi, $name!" } sets default 'Friend' directly in param block.Step 2: Compare alternatives
function Greet { param([string]$name) if (-not $name) { $name = 'Friend' } Write-Output "Hi, $name!" } and C use conditional logic; D has no default.Final Answer:
function Greet { param([string]$name = 'Friend') Write-Output "Hi, $name!" } -> Option CQuick Check:
Default in param block is simplest and correct [OK]
Quick Trick: Set defaults in param block for clean code [OK]
Common Mistakes:
- Using conditional assignment instead of default
- Omitting default value
- Setting default to null and checking later
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