[Solved] What is wrong with this advanced function that uses parameter validation?... What is wrong with this advanced function that uses parameter validation? | PowerShell

PowerShell - Functions

What is wrong with this advanced function that uses parameter validation?

function Test-Number {
  [CmdletBinding()]
  param(
    [ValidateRange(1,10)]
    [int]$Number
  )
  Write-Output "Number is $Number"
}

Calling Test-Number -Number 15 results in:

AThe function outputs 'Number is 15' without error

BThe function throws a validation error

CThe function ignores the parameter and uses default

DThe function crashes with a syntax error

Step-by-Step Solution

Solution:

Step 1: Understand ValidateRange attribute
ValidateRange restricts the parameter value to between 1 and 10 inclusive.
Step 2: Analyze input value 15
Since 15 is outside the valid range, PowerShell throws a validation error before running the function body.
Final Answer:
The function throws a validation error -> Option B
Quick Check:
ValidateRange enforces parameter limits strictly [OK]

Quick Trick: ValidateRange blocks invalid parameter values [OK]

Common Mistakes:

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What is wrong with this advanced function that uses parameter validation?